He went to make a save to his right , and his foot got caught on the turf .
Frei said he suffered the injury when the team was training on artificial turf during a rainstorm in Los Angeles .
Frei went to make a save to Frei 's right , and his foot got caught on the turf .
Frei said he suffered the injury when the team was training on artificial turf during a rainstorm in Los Angeles .