In a very rare occurrence in professional sports, Manager Alex Ferguson, is the latest Manchester United man to succumb to injury.
The Man U manager said he felt something tweak in his leg while trying to keep Christiano Ronaldo away from a mirror.
"He was supposed to be training..." said Ferguson "... not prettying him self up. I swear had he tried that 20 years ago he would've been beaten up in public."
Ferguson is due to have scans on the leg later today but it doesn't look good, and there are fears that the injury could rule him out for the season.
Ryan Giggs said "I don't know what we'll do without him... we'll probably play football... and win."
Ferguson says this is the worst injury he's had since hurting his toes kicking a boot at David Beckham's face.