NFL free agency is now in its fourth day. The St. Louis Rams pulled in a big fish early with cornerback Cortland Finnegan. So far, that is the team's only free agent addition, but that could change soon. According to one report out of New York, there is a good chance the Rams could have an agreement with Mario Manningham soon.

Manningham was still at Rams Park on Friday afternoon. He arrived there on Thursday evening.

Ralph Vacchiano of the New York Daily News offered this heads up earlier in the day.

Keep an eye on WR Mario Manningham (in St. Louis) and CB Aaron Ross (in Cincinnati). Both could officially become ex-#NYG later today.

— Ralph Vacchiano (@TheBlueScreen) March 16, 2012

Manningham is one of the better free agent receiver left on the market. He is not a typical No. 1 receiver, but would benefit the Rams as a player who works outside the numbers well.

Signing Manningham would hardly rule out the Rams taking another receiver in the draft. In fact, they still need a top-notch possession type on the outside. With Greg Salas, Danny Amendola and Austin Pettis, the slot position is well-staffed. Justin Blackmon is one option with the sixth pick, and a player like Michael Floyd or even Marvin Jones in the second round would fit the bill too.