Roger Federer said Serena Williams "went too far" with her on-court meltdown at the 2018 US Open women's final.<br />During the match Williams was slapped with three code violations.<br />Federer believes tennis players are, in general, far better behaved than other sports.<br />Especially when compared to Conor McGregor, the UFC fighter.<br />McGregor has attracted negative headlines for invading a Bellator cage, throwing a dolly through a bus window.<br />He has also fending off accusations of racism against former opponents Floyd Mayweather and Khabib Nurmagomedov.<br />According to Business Insider, Federer said "we do so well in tennis." <br />
