The St. Louis Rams' top wide receiver Danny Amendola is expected to miss six to seven weeks with a shoulder separation, NFL.com.
Amendola was injured in the second quarter of the Rams' 17-3 victory over the Arizona Cardinals on Thursday night trying to make a diving catch. He was later seen with a sling on his right arm on the sidelines.
Amendola, who has 31 catches for 351 yards and two touchdowns this season, had major elbow injury that cost him most of the 2011 season.
"Ya, it's big, I'm not gonna lie," Rams quarterback Sam Bradford said on the thought of losing Amendola. "Obviously, he's a big part of the offense. A lot of what we do runs through him. He went down last year, and it really hurt us. I feel confident about our guys we got this year, and I think it just opens up a spot for someone to step up and make some plays."