There could be an odd look in St. Louis when the Rams begin training camp July 27. Running back Marshall Faulk is trying to recover from offseason knee surgery, but his agent, Rocky Arceneaux, says the knee isn’t responding well.

No word has been given by Faulk on if he’ll return for another season or not but is expected to do so before camp begins. According to Arceneaux, the knee swells pretty significantly after just minor running activities.

Faulk underwent surgery on both his knees after the season. One of the knees is fine, but it’s the other one that is giving him fits and might require additional surgery soon.

If Faulk is unable to play this year, he won’t necessarily have to retire. The Rams have other options they can consider if they want to keep the veteran around. The team could place him on the injured-reserve list, sidelining him for the season. They could also place him on the “physically unable to perform” list, which would only make him inactive for the first six weeks of the season.