Dez Bryant on field, but not practicing

IRVING, Texas -- Dallas Cowboys wide receiver Dez Bryant was on the practice field on Thursday but did not take part in any of the drills during the portion of the session open to the media.

Bryant, who did not practice on Wednesday, spent extra time stretching his back and working through some light jogging as the offense did on-air and one-on-one drills. Bryant has said he will be able to play Sunday against the St. Louis Rams.

He jogged several routes and caught passes from assistant strength coach Bret Bech.

Bryant, 24, has been bothered by back spasms several times in his time with the Cowboys, but coach Jason Garrett does not believe it is a long-term concern. His back locked up so badly in the 2012 season finale at Washington that he could not walk without help.

“Sometimes these injuries come up with guys and you just have to get through them,” Garrett said. “I don’t know that age is really a factor here. Dez is a really tough guy. He typically comes back from injury fairly well and fairly quickly.”

Defensive end Anthony Spencer was at practice after missing Wednesday’s workout with a sore knee. Spencer said he expected to play against the Rams, but he will likely continue to work back into more playing time because of his prolonged absence.

Linebacker Ernie Sims (groin) did rehab work on the side for the second straight day.