Australian cricket legend Shane Warne raised eyebrows (including his own, perhaps) when he arrived with a curiously unlined face for the third Test between England and Sri Lanka at Southampton.
Warne took to Twitter to deny using botox or surgery, putting his new look down to losing over a stone in weight.
Nevertheless, the spinner inspired us to look at some more sporting stars who have had a dramatic change of appearance.
Warne in 2007 (left) and 2011 - he has denied using botox or surgery.
Andre Agassi shocked the world when he ditched his long hair - but later admitted it was a wig.
Darts star Andy Fordham shed a massive 10 stones in 2008.
Mike Tyson unveiled this dramatic face tattoo in 2003.
Ex-Manchester United winger Luke Chadwick had treatment for acne and dental work.
Romanian tennis player Simona Halep had breast reduction surgery in 2009.
Baseball slugger Barry Bonds' dramatic muscle growth prompted accusations of steroid use.
Ricky Hatton was legendary for his kebab-induced weight gain between bouts.
The stress of football management soon took its toll on Kevin Keegan's hair.
Pakistan batsman Mohammad Yousuf grew his beard after converting from Christianity to Islam.