The Eagles got a bargain for the fifth-round pick they got from the Browns for cornerback Sheldon Brown and linebacker Chris Gocong.
But Sims has health issues. The trade is contingent on his passing an Eagles physical that likely will take place Tuesday.
Last season he played in just 11 games having sprained the AC joint in his shoulder in the second game.
"Fluke injury" or not, later in '09 Sims tore his hamstring after hyper-extending a knee.
Sims said he entered '09 feeling better than he had since entering the league, having successfully rehabbed from shoulder surgery. The shoulder issues scared off several NFL teams, although the Lions took him off the board in the first round of the 2006 draft.
If Sims stays healthy, he's a solid sideline-to-sideline performer. His athleticism made him a No. 1 pick of the Lions in 2006.
Again, that's the rub. At 6-0, 230 pounds, he's not the biggest guy. Though he played all three linebacker slots in the Lions' 4-3 defense, the weak side is where he will have to make a living with the Birds.
Sims has pedigree. He teamed with Eagles DT Brodrick Bunkley at Florida State. The 2006 Seminoles were Bobby Bowden's last good team.