The tennis star was sidelined for using the drug after anti-doping authorities blacklisted it.
Novak Djokovic lost his last Grand Slam match as a man in his 20s, opening up more questions about how he'll fare in his next decade.
Federer has not played a Grand Slam since Wimbledon 2016.
Wawrinka won his first Grand Slam at 28.
This is Murray's first Grand Slam as world number one.
Wawrinka, the world number four, has a good head-to-head record against Murray.
Williams is tied with Steffi Graf on 22 Grand Slam singles titles.
Djokovic is coached by Becker.
The sporting icon has some words of advice for all of the "incredible women" striving for excellence.
By certain metrics, Novak Djokovic has had the better year.
If Nadal, Federer and Djokovic were sporting hares, Murray is a tortoise.
Murray was beaten in the final by Djokovic in 2015.
Sharapova can return on April 26.
Murray is currently competing in the China Open.
The 22-times Grand Slam winner was troubled by a knee injury.
The world number two is within touching distance of a second Wimbledon title.
At 21, the Australian has a lengthy list of indiscretions.
He faces Roger Federer on Centre Court on Wednesday.
The Championships runs from June 27 to July 10 at the famous London venue.
Serena Williams needs one more Slam to equal Steffi Graf's record haul, and Patrick Mouratoglou thinks he can get the tennis star over that line.