Every so often we swim with the sharks and update our division rivals file. Today is one of those days.

According to Pittsburgh Steelers general manager Kevin Colbert, Steelers running back Rashard Mendenhall and defensive tackle Casey Hampton are expected to start the 2012 regular season on the Physically Unable to Perform list. When the Pittsburgh Tribune-Review asked about the status of each player, Colbert said:

"My guess is they’ll open the season on PUP (the physically unable to perform list)," Colbert said.

"You’ve got to remember both of those injuries happened late in the year."

Mendenhall and Hampton tore an ACL against Cleveland on January 1 and Denver during the Wild Card game respectively. Players placed on PUP to start the season will be ineligible to participate during games and practice through the first six weeks. However their spot on the roster does not count against the 53-man roster. If the player is not activated by the end of the six weeks, the team has three weeks to determine what to do with the player -- activate him, release him (through an injury settlement) or put him on season-ending Injured Reserve.