The 49ers opened the second half with a five-play, 81-yard drive to take a 24-16 lead on the Cowboys.
Jordan James’ 49-yard kickoff return was called back for a holding penalty on Garret Wallow. The 49ers started at their own 19 and, even after a false start, they still didn’t have any problems getting to the end zone.
Christian McCaffrey ran for 3 yards; Jordan Watkins caught a 27-yard pass; Dallas had an offsides penalty; George Kittle caught a 15-yard pass; and Black had an 11-yard reception. That set up Black’s run as he ran over safety Caleb Downs and Cobie Durant to the end zone.
The 49ers have 325 yards.
The Cowboys answered with a seven-play, 38-yard drive that ended with Brandon Aubrey’s 52-yard field goal to make it 24-19.
The Cowboys have ruled out cornerback DaRon Bland with an ankle injury, and offensive guard Tyler Booker is questionable with an ankle injury.