Dallas Cowboys head coach Jason Garrett believes that quarterback Tony Romo had his "finest hour" leading his side to victory over the Washington Redskins last week.

Romo kept his side's playoff hopes alive as he engineered a late-minute drive to score a touchdown to win the Cowboys the game at FedEx Field, although it came at a cost as he has reportedly been ruled out for the season.

Garrett told reporters: "Tony did an unbelievable job. He might have had his finest hour against the Redskins last week. What he did at the end of that ball game, under the circumstances, is pretty special.

"There were a lot of circumstances going against him and he certainly rose to the occasion and somehow, some way, helped us win that ball game.

"He made a lot of big plays down the stretch, certainly the touchdown to DeMarco [Murray] was something else. A real tribute to him, his approach, his mental toughness, his physical toughness."

Dallas need to beat the Philadelphia Eagles on Sunday to secure a place in the NFC playoffs.