Manchester United striker Robin van Persie left the Liberty stadium on crutches after defeat to Swansea City.
The Dutch striker clearly hurt himself while crossing the ball as United chased the game, having gone 2-1 down through Bafetimbi Gomis' deflection of Jonjo Shelvey's long-range shot.
Van Persie stayed on the field with United having made all three permitted substitutions, but left the Liberty Stadium using crutches with his lower right leg and foot in a protective cast.
Confirming the Netherlands international had struggled late on in the game, manager Louis van Gaal said: "We dominated the game even with 10 men because Robin van Persie could not run anymore after the injury."
