Dallas Cowboys running back Tony Pollard was carted to the locker room and ruled out of Sunday's Divisional round clash against the San Francisco 49ers after suffering a high ankle sprain.

The injury occurred late in the second quarter as the Cowboys were driving with the score tied at 6-6, after a Dalton Schultz touchdown catch was answered by a pair of Robbie Gould field goals for the 49ers.

On an eight-yard catch-and-run over the middle of the field, Pollard was tackled from behind by Jimmie Ward and had his foot get trapped in an awkward position on the way down.

He was immediately taken back to the locker room and subsequently ruled out, and Cowboys quarterback Dak Prescott threw his second interception of the game on the very next play.

The 49ers capitalised and kicked their third field goal of the first half to head into the break leading 9-6, although Brett Maher was able to answer for the Cowboys to tie things up six minutes into the third period.