Who could take Richardson from Browns?

Most assume the Cleveland Browns will take running back Trent Richardson with the fourth overall pick. But, at this point, the Browns can't assume he's going to be available when they're on the clock.

The Minnesota Vikings could be the Browns' worst enemy because they're apparently shopping the third overall pick.

Speculation started Wednesday that the New York Jets could be interested in trading up to the No. 3 to take Richardson. While it's considered a long shot because the Jets would have to move up 13 spots, Richardson is the No. 1 player on their draft board, ESPN's Sal Paolantonio reported.

Another team that could jump ahead of the Browns is the Tampa Bay Buccaneers, who currently have the No. 5 pick. This would be an easier trade to work out, but the Buccaneers might not be willing to give up any picks. Tampa Bay has several needs and only six draft choices.

The third team to watch is the St. Louis Rams, who are at No. 6. ESPN's Todd McShay estimated that there's a 20 percent chance that the Rams would trade up for Richardson.

"They are infatuated with Trent Richardson," McShay told ESPN's "Mike & Mike In the Morning", "and would at least consider it or try to see if they would get a good deal to move up."

It's also possible that the Browns don't care if Richardson is there or not. Cleveland could be targeting Oklahoma wide receiver Justin Blackmon or LSU cornerback Morris Claiborne at No. 4. In that scenario, the Browns would take a running back like Boise State's Doug Martin with their second first-round pick (22nd overall) or their second-round one (No. 37).