Muhammad, who also missed last week's game against Green Bay, is listed as doubtful for Sunday's game against the Arizona Cardinals and talked like a player who may not be back anytime soon.
"I pulled it pretty good, man," Muhammad said of the injury he suffered in Week 3 against the Minnesota Vikings. "Anytime you see a guy hit the turf the way I hit the turf, you know I pulled it pretty good. There are guys around the league that are going to be out six to eight weeks with a hamstring pull."
Muhammad missed seven games his rookie season with a hamstring injury.
When asked if he may be out a few weeks, Muhammad replied, "I'm trying to be optimistic about this thing and say that I'm going to return as soon as I can. But I'm also going to be smart about it and not come back and re-injure it and be out an extensive period of time."
Isaac Byrd, who did not have a reception last week in his first start of the season, is expected to start again this week in place of Muhammad.
Muhammad has not practiced this week.
"I'd like to come out and play, but only when it's ready," Muhammad said. "It's not ready to play. I'm working hard to get it to that point. I'm more than eager to get out there and play. I see a lot of plays that can be made out there. I want to be out there with the team but right now I probably wouldn't be much help out there."
Panthers WR Muhammad struggling to heal hamstring
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