SAN FRANCISCO -- In a game that has been delayed twice by power outages, the Pittsburgh Steelers haven't generated much themselves on the offensive side of the ball. That's why Pittsburgh trails the 49ers, 6-0, at halftime.
The Steelers were shut out in the first half for the second time this season and only the third time in four seasons. Steelers quarterback Ben Roethlisberger was limited by his high-ankle sprain, completing 14 of 23 passes for 141 yards in the first two quarters. Unable to step into throws, he completed one pass for more than 10 yards and was intercepted twice on long throws.
Pittsburgh's biggest mistake occurred in the final minute of the first half. After a 7-yard completion to Mewelde Moore, the Steelers allowed 19 seconds to tick off the clock before running another play with 11 seconds remaining. Pittsburgh could have stopped the clock because it had one timeout left.
The half ended with a 24-yard pass to Antonio Brown as time expired.
Some other thoughts at halftime:
The Steelers' defense has allowed only one touchdown in its past 15 quarters. Pittsburgh has limited the 49ers to 153 first-half yards. After Roethlisberger's first interception, the Steelers kept the 49ers out of the end zone after six plays run in the red zone.
Rashard Mendenhall hasn't had much success against the NFL's top-ranked run defense. He has 30 yards on nine carries. His longest run has been eight yards.
Steelers linebacker James Harrison, who is serving his one-game suspension, tweeted this during the one power outage: "If I cant play then can't nobody play... Lights out!"