What they say

"It's disbelief I can achieve such heights. I wasn't sure I would ever be here in another final after last year."

Roger Federer, after winning his eighth Wimbledon title

"He's a hero."

Federer, on injured final opponent Marin Cilic

"I never give up in a match. I gave it my best - it's all I can do."

Cilic, on playing with a blister on his left foot

"The GOAT does it again! x19! And at age 35. He's my hero and inspiration! So proud of you @rogerfederer!"

Lindsey Vonn, American ski star hails the "greatest of all time" on Twitter

"Seeing@rogerfederer lift another grand slam trophy, another Wimbledon trophy.... just gives me goosebumps Congrats Roger!!!"

Monica Puig, Puerto Rico's reigning Olympic women's tennis champion on Twitter

"Game, set, unmatched."

Sports Illustrated headline

"A record 8 Wimbledon championships and a lifetime of being a champion on and off the court and @rogerfederer is the greatest of all time."

Bille Jean King, on Twitter

"#RO8ER#JustDoIt"

Golfer Rory McIlroy, on Twitter

"So special to witness historically moment... @rogerfederer please never stops to play #tennis!! #19 #8th@Wimbledon#RogerFederer for ever."

Marion Bartoli, France's 2013 women's Wimbledon champion tweets her congratulations to Federer, albeit in broken English

"19! The king@rogerfederer!!"

Stan Wawrinka, Swiss Federer's compatriot