IRVING, Texas — The Dallas Cowboys have given right tackle Marc Colombo a four-year contract extension, guaranteeing that nearly all of Tony Romo's blockers will be together through 2012.

Colombo's deal was agreed to weeks ago, but wasn't finalized until Wednesday because of some technicalities. It's worth $22 million, with $11.5 million guaranteed.

"We had a couple of road bumps with some of the new rules," Colombo said yesterday. "We worked through it. It is a relief to have this finished."

The Cowboys (9-6) play Sunday in Philadelphia, a game they must win to make the playoffs. It also will be Colombo's 48th straight start.

Left guard Kyle Kosier is signed through 2010, but everyone else on the line is signed for several more years. Colombo and center Andre Gurode are locked up until 2012, while Flozell Adams and Leonard Davis are through '13.

Romo returned to work yesterday, going through practice a day after being sent home with flu-like symptoms.

"We'll make him practice double today," Cowboys coach Wade Phillips said, smiling. "We'll make him practice extra so he can catch up for people who worried about him missing practice yesterday."

SHORT SNAPS

Miami Dolphins linebacker Channing Crowder (knee) and cornerback Will Allen (groin) were limited in practice yesterday and their availability for Sunday's showdown against the New York Jets is uncertain. ... Secondary coach Raheem Morris will take over as defensive coordinator for Tampa Bay in 2009, replacing Monte Kiffin, who left to join his son, Lane, at the University of Tennessee.