Whatever Shanahan said at halftime, the team got the message. Christian McCaffrey spun his way into the end zone but not without the help from Brandon Aiyuk and Ray-Ray McCloud.
That long touchdown run gave the 49ers another commanding 27-7 lead, and erased any momentum the Steelers had after their score at the end of the half.
Pittsburgh gained 26 yards on their first play from scrimmage, but wound up punting after failing to pick up more than four yards on the next set of downs.
The Purdy to Aiyuk connection continued to shine, as Aiyuk caught passes of 16 and 15 yards.