Patrick Willis helped off the field

AP

San Francisco’s best player was knocked out of Sunday’s game early with an injury.

Linebacker Patrick Willis had to be helped off the field in the first quarter against the Rams. He suffered some sort of leg injury and appeared to grab his hamstring.

Two people had to help Willis hobble off the field.  The 49ers lead 3-0 early.

UPDATE: The 49ers confirmed it’s a hamstring injury. Willis is doubtful to return.