United States forward Jozy Altidore will miss the rest of the CONCACAF Gold Cup after being ruled out for four to six weeks with a hamstring injury.

GettyImagesJozy Altidore: On loan at Bursaspor

Altidore sustained a strain to his left hamstring during the United States' quarter-final victory over Jamaica and a scan confirmed the injury on Tuesday.

The 21-year-old is currently on loan at Turkish side Bursaspor from La Liga team Villarreal and the injury will see Altidore miss a large chunk of pre-season training.