The Eagles' defensive secondary, already shorthanded because of Dominique Rodgers-Cromartie's ankle injury, might be missing another key weapon when the Patriots arrive for Sunday's game. On Thursday, cornerback Nnamdi Asomugha was taken off the practice field on a cart after injuring his knee during a non-contact drill. The Eagles said they would have no comment on the extent of the injury until Friday.

FOXBORO -- The Patriots listed linebackers Dane Fletcher (thumb) and Brandon Spikes (knee) as DNP on Thursday's injury report. Here's the complete rundown:

Did Not Practice
LB Dane Fletcher (thumb)
LB Brandon Spikes (knee)

Limited Participation
WR Deion Branch (hip)
CB Devin McCourty (shoulder)
OT Matt Light (ankle)
S Patrick Chung (foot)
C Dan Connolly (groin)
LB Gary Guyton (shoulder)
S James Ihedigbo (shoulder)
WR Taylor Price (hamstring)

FOXBORO -- The Patriots made several personnel moves on Thursday morning, adding wide receiver Tiquan Underwood to the 53-man roster and placing rookie linebacker Jeff Tarpinian on injured reserve with a head injury. In addition, it was announced that safety Ross Ventrone has been signed to the practice squad, while defensive back Josh Victorian was released from the practice squad.

FOXBORO -- Linebackers Dane Fletcher (thumb) and Brandon Spikes (knee) were the only two players missing from the start of Patriots practice on Thursday morning. New England was going through one of its final practices in preparation for Sunday's game against the Eagles in Philadelphia, wearing sweats and shells on the upper fields behind Gillette Stadium.

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Patriots tight end Rob Gronkowski accepted an offer from the American Hockey League's Worcester Sharks to spike a puck at center ice before a game. In return, the Sharks will pay Gronkowski $7,500, the amount he was fined by the NFL for spiking the ball in front of a Jets player on Nov. 13.

Gronkowski will make his appearance Feb. 13, when the Sharks take on the Providence Bruins at the DCU Center.

Patriots quarterback Tom Brady is dealing with a form of tennis elbow, according to Pro Football Weekly. PFW quotes a league source as saying the team is resting Brady as much as it can during the week as opposed to his normal practice regimen.

FOXBORO -- Linebacker Jeff Tarpinian missed practice Wednesday with an undisclosed illness. He was among three players who missed the Patriots walkthrough inside the Dana Farber Field House. The Patriots will practice on Thursday and Friday before wrapping up with a walkthrough on Saturday and traveling to Philadelphia for Sunday afternoon's game.  The Patriots listed 11 as limited at practice, including Matt Light, who left Gillette Stadium after Monday's win over the Chiefs wearing a walking boot on his right foot.

FOXBORO -- The linebacker trio of Dane Fletcher, Jeff Tarpinian and Brandon Spikes were the only three players not spotted at Patriots practice indoors Wednesday at the Dana Farber Field House. 

Fletcher has missed the last four games with a thumb injury while Tarpinian missed Monday's game after turning up sick late last week. Brandon Spikes injured his knee against the Giants on Nov. 6 and hasn't practiced since reportedly straining the MCL in his right knee. 

During a conference call with New England media, Eagles coach Andy Reid said Michael Vick would not practice on Wednesday, still taking time to heal two broken ribs. Taking Vick's place in practice is Vince Young, who led the Eagles to a 17-10 win over the Giants, keeping their flickering playoff hopes alive. 

"He won't practice," Reid said of Vick. "Just take it day-by-day, see how he does here. Vince will take the reps. See how he's doing [Thursday]. He threw [Tuesday] a little bit and little bit more as we go on here."

Peter King of Sports Illustrated and NBC made his weekly appearance on the Mut & Merloni show Wednesday to talk about the Patriots and NFL news.

The Patriots head to Philadelphia Sunday to meet the underachieving Eagles, who might be without quarterback Michael Vick. Nursing broken ribs, Vick did not practice Wednesday after throwing some on Tuesday. In Philadelphia's last game, backup Vince Young sparked a victory over the Giants in New York, improving the Eagles' record to 4-6 and keeping their slim postseason hopes alive.