LIVE: MCNABB HURTS RIGHT ANKLE
A.J. Feeley took over at quarterback and continued into the third quarter, leading a seven-play, 62-yard touchdown drive capped by Correll Buckhalter's eight-yard run for a 10-7 lead.
The Eagles also played without defensive end Jevon Kearse, a healthy scratch for the first time in his nine-year career.
McNabb's right leg got caught beneath him during a scramble on a hard tackle by Dolphins cornerback Michael Lehan.
A year ago to the day, McNabb had reconstructive knee surgery on his right ACL.
McNabb was having his worst half of the season when he exited. He had thrown a couple of interceptions and had completed just three of 11 passes for 34 yards and a passer rating of 0.4.
Dolphins rookie John Beck was 4-of-10 for 55 yards and a 55.3 passer rating at the same stage.
Feeley gave the Eagles an immediate lift.
But Feeley threw a horrendous interception after marching the Eagles to the 25 of the Dolphins late in the second quarter, the ball not even close to intended receiver Jason Avant. Cornerback Andre Goodwin caught it at the 2 and was forced out at the 7.
The Dolphins led 7-3 at the intermission.