Federer beat Nadal in five sets on Sunday.
Roger Federer beat Rafael Nadal in a thrilling five–set Australian Open final on Sunday, and Twitter went wild.
Federer's victory marked his 18th Grand Slam title, the most of all–time. Federer, 35, hadn't won a Slam since Wimbledon in 2012.
Nadal has dominated his rivalry with Federer, but Federer avenged his 2009 Australian Open final defeat to Nadal on Sunday.
Here's a look at some of the best Twitter reactions to Federer's victory, both within the tennis community and elsewhere.
Thank you both, don't you ever quit tennis!! GRANDEEE ROGER 🙌 So inspiring!!— Juan M. del Potro (@delpotrojuan) January 29, 2017
Demasiado Federer! Too much Federer 👏🏼— Garbiñe Muguruza (@GarbiMuguruza) January 29, 2017
Could be my fav Aussie open and didn't even play 😂🙄— Ajla Tomljanovic (@Ajlatom) January 29, 2017
🐐🐐🐐🐐🐐🐐🐐— Rory McIlroy (@McIlroyRory) January 29, 2017
Roger Federer 🏆 X 18.— Chris McKendry (@ChrisMcKendry) January 29, 2017
ROGER FEDERER THE GOD— Dad (@fivefifths) January 29, 2017
Federer has now won five Australian Open titles.