( CNN ) When Andy Roddick played tennis , the grand slam winner and former world No . 1 never shied away from conversing , or arguing with chair umpires . The American famously blew up at the Australian Open in 2008 in a five-set loss to Philipp Kohlschreiber , telling the crowd in Melbourne : `` Stay in school , kids , or you 'll end up being a chair umpire . '' By no means was it the lone outburst of his career . Having retired in 2012 and now watching the game as a pundit , Roddick , perhaps unsurprisingly , says there is not enough interaction between players and umpires . His solution ? Roddick would scrap Hawk-Eye or severely alter the system currently in place . `` This is completely different to what I thought as a player , but I would get rid of the challenge system , '' Roddick told CNN 's Open Court on the sidelines of the charity event Mylan WTT Smash Hits in December . `` I feel like we 've lost a lot of our personality . If someone is really having a go at the umpire , you are not going to change the channel . It 's an impossibility . `` It 's about eyeballs on TV sets , '' he said . The overwhelming majority of players currently on the tennis tour have welcomed the instant replay system , which was first introduced at a top-level tennis tournament late in 2005 . By that time , Hawk-Eye had already been used in cricket , with football 's Premier League subsequently adopting Hawk-Eye to help determine whether goals have been scored . Roddick -- a big sports fan who touches on several sports in his role for Fox Sports in the U.S. -- is n't alone in his dislike of Hawk-Eye . Roger Federer , the 17-time grand slam champion who could be labeled a traditionalist , asked Hawk-Eye to be switched off during the 2007 Wimbledon final against arch-rival Rafael Nadal . And two years ago in Dubai , the Swiss told reporters : `` What I like without Hawk-Eye is just the players challenging the umpires more often . '' He did add , though , that he got the `` point '' of Hawk-Eye . `` We love our guys in the game now , Roger , Rafa and the way they carry themselves but there 's some entertainment value on the guys that do n't carry themselves so well , '' Roddick said , mentioning himself , retired two-time grand slam winner Marat Safin and the man dubbed 'Super Brat , ' John McEnroe . `` Johnny Mac is out here all the time still going nuts and people love it , '' said Roddick , referring to the 55-year-old McEnroe competing in seniors ' events . Enric Molina , a former elite umpire who was in the chair for grand slam , Davis Cup and Olympic finals , did n't entirely disagree with Roddick . Molina officiated before Hawk-Eye and then when it was implemented at tournaments . `` I think Hawk-Eye is a great addition to the game , because the fans love it , and at the end of the day , the players have a chance to make sure the calls are right , '' Molina , the CEO and founding partner of sports management company Big Match Player , told CNN.com . `` From an umpire 's point of view , this is very satisfying because the worst feeling you have in the chair is when you think you 've made a mistake and there 's nothing you can do about it . `` But having said that , I see where Andy is coming from . It has taken away the discussion , the element of confrontation between the players and umpires , and that may be a sad thing of course for some fans -- but not necessarily for those in the chair . '' If discontinuing Hawk-Eye is too harsh , Roddick suggested limiting the number of challenges in a match to one . The challenge would remain an option so long as the player is proved right when going to the instant replay . Currently in matches where Hawk-Eye is employed , players are allowed three incorrect challenges per set , plus one more in a tiebreak . Another change in the game Roddick would make is keeping play going when there are lets . For Roddick , the entertainment factor is indeed key . `` We are fooling ourselves if we do n't think sports are entertainment , '' he said . `` The first goal is winning and that 's where you have a job . I am not saying we parade around and go all Hulk Hogan and enter the court in feather bows or anything , but if we play tennis with regular umpires forever and a day and it worked -- it was n't like it was broken at all . ''
Andy Roddick says he would abolish or significantly alter the challenge system in tennis . Roddick feels that some of the entertainment value is gone from tennis . Roger Federer , considered a traditionalist , has never been a fan of Hawk-Eye . Roddick also says he would do away with lets in tennis , with play continuing .