Roger Federer unleashed his class in the Australian Open semis to reach the finals for the first time since 2010. Federer, who was on a six month break before the Australian Open, had slipped to number 17 in the world rankings. He defeated his Swiss compatriot, Stan Wawrinka, 7-5 6-3 1-6 4-6 6-3 and Twitter went berserk.

Here are some reactions to Federer’s amazing win in the Australian Open semis.

If I got a rupee from all the folks who told me RF " is done" last year, I would have been able to fly private to the final! #magician ☝???

— Mahesh Bhupathi (@Maheshbhupathi) January 26, 2017

Here's to the ? of the 1981 kids.

Roger Federer (35) makes it to the #AusOpen final. The oldest man to reach a GS final since 1974. pic.twitter.com/P13fWrRIGI

— LuisMiguelEchegaray (@lmechegaray) January 26, 2017

35-y.o Roger Federer came to #AusOpen after not playing for six months, then won two five-setters over top-5 guys to reach the final. Unreal

— Ben Rothenberg (@BenRothenberg) January 26, 2017

Thanks for the Amazing game!!! ??#inspiration #mustbelove @rogerfederer @stanwawrinka pic.twitter.com/3ytfkf0P1U

— Timea Bacsinszky (@TimeaOfficial) January 26, 2017

"I'm Roger's No. 1 fan"

"I'm Rafa's No. 1 fan"

"We're both each other's No. 1 fans" pic.twitter.com/e1YFWtAgnp

— Ricky Dimon (@Dimonator) January 26, 2017

The King is back! ???#Federer #AusOpen pic.twitter.com/e3zsxBRP1H

— #AusOpen (@AustralianOpen) January 26, 2017

I feel like Federer and Nadal in a Grand Slam final is the universe saying: "How about we just reset the world 8 years and have a do-over?"

— Wil Anderson (@Wil_Anderson) January 26, 2017

Federer:"Months ago I went to visit Nadal in Mallorca, we both were injured. And we said it was difficult to play together a final again"
❤️

— Tancredi Palmeri (@tancredipalmeri) January 26, 2017

Serena Williams-35 years
Venus Williams-36 years
Roger Federer-35 years

Finalists in the #AusOpen

30's is the new 20's nowadays

— Xhakahari (@Cechque) January 26, 2017

Win or lose the final Roger Federer has further cemented himself as the greatest male tennis player of all time. Simply sublime #AusOpen

— Matthew Stringer (@matty1969m3) January 26, 2017

It’ll be one hell of a game if Nadal makes it to the finals as well, but you know what, we’ll still be rooting for the Swiss genius because nobody can match the class of King Roger.