"The newest member of the St. Louis Rams, wide receiver Mark Clayton, didn't make the trip with the team to Jacksonville, and he may not play until October.

Clayton, coming off 2010 knee surgery, was placed on the physically unable to perform/active list after signing.

For the time being, that means Clayton counts against the 80-man roster. The Rams are expected to place Clayton on the PUP/reserve list by Saturday, when teams have to cut to the regular-season roster limit of 53 players. As a PUP/reserve player, Clayton won't count against the 53-man roster, but won't be eligible to play for a minimum of six weeks.

But Clayton wanted to sign, St. Louis is a good fit for him, and the Rams obviously are interested in having Clayton catch passes from Sam Bradford, even if that doesn't happen until October."