Facing ATP's top servers: One man tries to return Opelka's serve - Sports Illustrated
Andy Murray doesn't have to match John Isner's serve to beat him, says Mark Petchey | Tennis News | Sky Sports
John Isner Continues to Impress at Wimbledon - Last Word On Tennis
Isner Blasts Hobbled Baghdatis to Three-Peat in Atlanta - Tennis Now
Who is the Greatest Server of All Time? – The Muscled Tennis Maestro
Serving Mechanics - The Jump - Tactical Tennis
Player Profile: John Isner and the impact he has had on the sport
John Isner's Secret Weapon: Training to Be America's No.1 Tennis Player - Men's Journal
Tennis Photography - Serve Impact Height
Federer-Isner final likely to come down to serves -- and tiebreakers - ESPN
John Isner: Serve Analysis - YouTube
Tennis Serves Have Room to Go Faster - WSJ
Does John Isner belong in the International Tennis Hall of Fame?
John Isner has tennis' fastest serve, longest match, and most aces. #ad Now, Isner is calling it a career, and the 6'10” American star is… | Instagram
Hruby: I got served by John Isner -- at 140 mph - ESPN Page 2
John Isner serve | John Isner during his first round match w… | Flickr
Despite loss to Federer, Isner serves and destroys – Orange County Register
Roger Federer: John Isner 'not surprised' about ONE thing ahead of Miami Open final | Tennis | Sport | Express.co.uk
Wimbledon: No Longer About the Big Serves - WSJ
Tall advantage: Top 10 all-time fastest servers in men's tennis
Tennis Photography - Serve Impact Height
2012 U.S. Open: Volatile John Isner serves up victory over Finland's Jarko Niemenen – New York Daily News
All you need to know about John Isner
John Isner tennis: Cooking, politics, Carolina Panthers - Sports Illustrated
tennis-serve-stroke-technique-swing-john-isner - Pat Cash Tennis
John Isner's racquet - Tennisnerd.net
The View: Disallow serve tosses to be caught and "half the doubles tour would be out of a job,” declares Isner
Tennis Server - Turbo Tennis - The Modern Serve
Fastest recorded tennis serves - Wikipedia
