{"id":2050163,"date":"2026-07-18T17:59:24","date_gmt":"2026-07-18T14:59:24","guid":{"rendered":"https:\/\/analyse.optim.biz\/?p=2050163"},"modified":"2026-07-18T17:59:24","modified_gmt":"2026-07-18T14:59:24","slug":"jannik-sinner-copied-john-isners-serve-reveal-jessica-pegula-and-madison-keys","status":"publish","type":"post","link":"https:\/\/analyse.optim.biz\/?p=2050163","title":{"rendered":"Jannik Sinner &#8216;copied&#8217; John Isner\u2019s serve, reveal Jessica Pegula and Madison Keys"},"content":{"rendered":"<article class=\"ps-article-content rounded-lg lg:mt-5 lg:border lg:border-card lg:bg-card lg:shadow-primary\">\n<header>\n<h1 class=\"py-4 text-xl font-normal text-title sm:text-2xl\">Jannik Sinner \u2018copied\u2019 John Isner\u2019s serve, reveal Jessica Pegula and Madison Keys<\/h1>\n<div class=\"my-2 flex items-center justify-between\">\n<div class=\"flex items-center\">\n                        <a href=\"https:\/\/www.tennis365.com\/author\/oliver-paton\" class=\"text-sm font-normal !text-author\"><br \/>\n                            Oliver Paton                        <\/a><br \/>\n                        <time class=\"ml-3 text-sm font-normal text-info md:ml-4\" datetime=\"18 Jul 2026 6:59 PM\" data-ps-date=\"18 Jul 2026 6:59 PM\" data-ps-datetime=\"1784397564\"><br \/>\n                            18 Jul 2026 6:59 PM                        <\/time>\n                    <\/div>\n<div class=\"hidden justify-end space-x-4 text-xl sm:flex sm:!opacity-100\">\n                        <a href=\"https:\/\/google.com\/preferences\/source?q=tennis365.com\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><br \/>\n                            <img loading=\"lazy\" decoding=\"async\" class=\"mx-auto !my-0 hidden dark:block h-6\" src=\"https:\/\/www.tennis365.com\/content\/themes\/tennis365-sportsui\/img\/png\/preferred_source_badge_dark.png\" alt=\"Add as a preferred source on Google\" width=\"76\" height=\"24\"><br \/>\n                    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class=\"sm:hidden flex items-center space-x-5\">\n                        <a href=\"https:\/\/google.com\/preferences\/source?q=tennis365.com\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><br \/>\n                            <img loading=\"lazy\" decoding=\"async\" class=\"mx-auto !my-0 hidden dark:block h-6\" src=\"https:\/\/www.tennis365.com\/content\/themes\/tennis365-sportsui\/img\/png\/preferred_source_badge_dark.png\" alt=\"Add as a preferred source on Google\" width=\"76\" height=\"24\"><br \/>\n                            <img loading=\"lazy\" decoding=\"async\" class=\"mx-auto !my-0 dark:hidden h-6\" src=\"https:\/\/www.tennis365.com\/content\/themes\/tennis365-sportsui\/img\/png\/preferred_source_badge_light.png\" alt=\"Add as a preferred source on Google\" width=\"76\" height=\"24\"><br \/>\n                        <\/a><br \/>\n                        <button id=\"t365-article-share-btn-hidden\" class=\"mr-2 hidden h-6 w-6 appearance-none border-none !text-share-icon outline-none hover:!text-share-icon-active sm:hidden\" data-title=\"Jannik Sinner \u2018copied\u2019 John Isner\u2019s serve, reveal Jessica Pegula and Madison Keys\"><\/p>\n<p>                        <\/button>\n                    <\/div>\n<\/p><\/div>\n<\/header>\n<div class=\"-mx-3 sm:-mx-5 border-b border-page\"><\/div>\n<section>\n<div class=\"-mx-3 sm:-mx-5\">\n<figure class=\"aspect-h-9 aspect-w-16 relative\">\n                                        <img fetchpriority=\"high\" decoding=\"async\" width=\"1320\" height=\"742\" loading=\"eager\" class=\"w-full h-full object-cover object-center !my-0\" src=\"https:\/\/images.ps-aws.com\/c?url=https%3A%2F%2Fwww.tennis365.com%2Fcontent%2Fuploads%2F2024%2F12%2FJannik-Sinner-John-Isner1-1320x742.jpg\" alt=\"Jannik Sinner speaking, with John Isner inset.\">                <\/figure><figcaption class=\"flex items-center space-x-3 border-b border-mobile-caption px-3 lg:border-caption\">\n<div><\/div>\n<div class=\"my-1.5 break-words !text-xs !text-content\">\n                                John Isner was a &#8220;little bit surprised&#8221; by Jannik Sinner winning the ATP Fans&#8217; Favourite award.                            <\/div>\n<\/figcaption><\/div>\n<div class=\"ciam-article-t365\"><!-- Article Start --><\/p>\n<p><a href=\"https:\/\/www.tennis365.com\/tag\/jannik-sinner\">Jannik Sinner<\/a>\u2019s remarkable improvement on serve \u2018doesn\u2019t make sense\u2019, according to Jessica Pegula and Madison Keys, with the two WTA stars revealing that the Italian has taken direct inspiration from big-serving former world No 8 John Isner.<\/p>\n<p>The Italian has been the standout player of the 2026 season, compiling a stunning 44-3 win-loss record.<\/p>\n<p><a href=\"https:\/\/www.tennis365.com\/tag\/jannik-sinner\">Sinner<\/a> has won five Masters 1000 titles this year, in addition to reaching the semi-finals of the Australian Open and, most recently, successfully defending his Wimbledon crown.<\/p>\n<p>He leads the ATP Live Race by 1410 points over world No 2 Alexander Zverev and has already secured qualification for the season-ending Nitto ATP Finals.<\/p>\n<p>Despite suffering a shock second-round defeat to Juan Manuel Cerundolo at the French Open, where he struggled in the hot conditions, the improvements in Sinner\u2019s game have been clear to see.<\/p>\n<p>Most notable has been his effectiveness behind both his first and second serves, something that is reflected in the statistics.<\/p>\n<p>Sinner\u2019s service rating over the past 52 weeks on the ATP Tour stands at 302.4, second only to American Reilly Opelka and ahead of the likes of Ben Shelton and Taylor Fritz.<\/p>\n<p>The world No 1 also leads the ATP Tour in service games won (92.9%) and first-serve points won (80.9%).<\/p>\n<p>World No 3 Pegula and Australian Open champion Keys discussed Sinner\u2019s development during an episode of their \u2018The Player\u2019s Box\u2019 podcast.<\/p>\n<h2>Latest Tennis News<\/h2>\n<p><a href=\"https:\/\/www.tennis365.com\/tennis-news\/novak-djokovic-lionel-messi-share-powerful-exchange-handling-pressure\">Novak Djokovic &amp; Lionel Messi share powerful exchange on handling pressure<\/a><\/p>\n<p><a href=\"https:\/\/www.tennis365.com\/atp-tour\/carlos-alcaraz-jannik-sinners-eventual-grand-slam-hauls-predicted-renowned-tennis-analyst\">Carlos Alcaraz &amp; Jannik Sinner\u2019s eventual Grand Slam hauls predicted by renowned tennis analyst<\/a><\/p>\n<p><strong>Want more from Tennis365? Add us as<span>\u00a0<\/span><a rel=\"nofollow noopener\" href=\"https:\/\/www.google.com\/preferences\/source?q=tennis365.com\" target=\"_blank\">a preferred source on Google to your favourites list<\/a><span>\u00a0<\/span>for tennis coverage you can trust.<\/strong><\/p>\n<p>\u201cHis serve is so good, one of the best, most improved shots,\u201d Pegula analysed.<\/p>\n<p>\u201cThey should give awards to Sinner\u2019s serve. His serve is a joke. His wide serve on the ad side is insane.<\/p>\n<p>\u201cAnd every time I watch him, I\u2019m like, \u2018Ooh, like I know that\u2019s his favourite serve and it\u2019s like kind of low percentage.\u2019 Like you always think, \u2018Oh, there\u2019s no way he\u2019s going for it again.\u2019 Just hits an ace every time.<\/p>\n<p>\u201cI don\u2019t understand. Like how did your serve get so much better?\u201d<\/p>\n<p>Keys then revealed that Darren Cahill, Sinner\u2019s coach, had encouraged the world No 1 to study Isner\u2019s renowned serve and incorporate elements of it into his own game.<\/p>\n<p>\u201cI thought it was pretty crazy because I think I heard Darren talking about it when he first started with Jannik and one of the big things was like we need to improve your serve,\u201d added the American.<\/p>\n<p>\u201cThat\u2019s your thing. Basically, pick someone to watch and then just try to copy their serve. And he watched John Isner and was just like, \u2018Okay, got it.\u2019\u201d<\/p>\n<p>\u201cAnd then it\u2019s crazy that when you\u2019re at the top of the game or you\u2019re one of the three at the top of the game to keep improving and being willing to change things when you\u2019re holding 87 consecutive times against people [Alexander Zverev] and someone comes to you like, \u2018Yeah, we should make a tweak.\u2019<\/p>\n<p>\u201cThe fact that he\u2019s like, \u2018Yeah, okay. No problem.\u2019\u201d<\/p>\n<p>Isner later saw the discussion on Instagram and jokingly responded:<\/p>\n<p>\u201cServing like me with an actual baseline game is a decent combo.\u201d<\/p>\n<p><!-- Article End --><\/div>\n<\/section>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Jannik Sinner \u2018copied\u2019 John Isner\u2019s serve, reveal Jessica Pegula and Madison Keys Oliver Paton 18 Jul 2026 6:59 PM John Isner was a &#8220;little bit surprised&#8221; by Jannik Sinner winning the ATP Fans&#8217; Favourite award. Jannik Sinner\u2019s remarkable improvement on serve \u2018doesn\u2019t make sense\u2019, according to Jessica Pegula and Madison Keys, with the two WTA [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[226,249],"class_list":["post-2050163","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-crawlmanager","tag-tennis365-com"],"_links":{"self":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/2050163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2050163"}],"version-history":[{"count":0,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/2050163\/revisions"}],"wp:attachment":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2050163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2050163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2050163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}