Warren shaken up

NEW ORLEANS -- Patriots defensive end Ty Warren appeared to injure his right ankle early in the second quarter.

Warren took himself out of the game after Pierre Thomas converted a fourth-down run. On the next play, Drew Brees connected with Thomas on an 18-yard touchdown pass to put the Saints out front, 10-7, with 12:55 remaining in the half.

Trainers appeared to be tending to Warren's right ankle, removing his shoe during their examination. Warren stood up shortly after and walked along the sideline.

No official injury announcement has been provided by the Patriots.

(Update: Warren returned to the field later in the second quarter).