CLEVELAND -- With less than two weeks before the NFL draft, multiple teams have called the Browns about their No. 4 pick, league sources told the Plain Dealer, and there's a decent chance the Browns will trade down.

At least three or four teams in the top 20 have expressed interest in trading up, and the Browns are expected to have some enticing options on draft day.

Rams coach Jeff Fisher, who has the No. 6 pick, has already identified the Browns as a potential trade partner, and the Eagles at No. 15 are believed to be interested in trading up, sources said. At least two other teams are in the mix.

And it's not just Texas A&M quarterback Ryan Tannehill that teams are after. There's been considerable interest in USC offensive tackle Matt Kalil, LSU cornerback Morris Claiborne and Oklahoma State receiver Justin Blackmon.

The Rams and Eagles are attractive trade partners because both have two picks in the second round. The Rams have the 33rd overall pick and the 39th pick from their recent trade with Washington. The Eagles have the No. 46 pick in the second round and the No. 51st pick from their trade with Arizona last year for quarterback Kevin Kolb.

At the NFL Owners meetings last month, Fisher said he'd consider trading up with the Browns depending on what they wanted in return. He didn't specify which player he'd trade up for, but the Rams are believed to have interest in Blackmon. Fisher re-iterated Friday that he'll trade up, down or stay where he is.

The Eagles and Chiefs (No. 11) have both conducted private workouts with Tannehill, but the Chiefs "would probably not trade up'' a league source said. The Bills (No. 10) will also host Tannehill on Tuesday after he visits the Browns on Sunday and Monday.

The Eagles, who've already executed trades with their former general manager Tom Heckert, might be willing trade up, but nothing would happen until draft day, because the Vikings are also believed to be interested in trading down from No. 3. ESPN's Adam Schefter reported Monday that the Vikings will pass on Kalil, and Vikings general manager Rick Spielman told Pro Football Weekly that he'd be open to dealing.

"There are times we have been in (the war room) and we've done deals on the clock," Spielman told the site. "It's an unknown, but you're prepared for both ways. We'll be ready and we'll have a good idea of what we think the value of that third pick is.''

The Dolphins at No. 8 and Seahawks at No. 12 also interested in Tannehill, but it's unknown if they'd be willing to move up.

Heckert said at the owners meetings that he had preliminary talks with several teams. He also said he'd be willing to trade down "a few spots'' but not all the way back to No. 27 like he did last year with Atlanta in the trade for receiver Julio Jones. (He then moved back up to No. 21 to select Phil Taylor).

Question is, would No. 15 be too far back? Maybe not. The Browns have hosted a number of players over the past two weeks that are projected to go in the teens, including Notre Dame receiver Michael Floyd, Baylor receiver Kendall Wright and South Carolina cornerback Stephon Gilmore. If the Browns picked up two extra second-round picks, they'd have three in that round, including the No. 37 overall.

They could use one of those picks to trade back up from No. 22 and grab another elite player.

