‘He’s going to be dangerous’

PITTSBURGH — It turns out that Nick Bosa’s contract holdout did not keep him completely out of the loop with the 49ers, especially when it came to Drake Jackson’s progress.

“I was watching tape throughout the holdout,” Bosa said. “It was clear as day he’s made strides, with his work ethic, his preparation and all his moves out there.”

Jackson produced three of the 49ers’ five sacks in Sunday’s 30-7 rout of the Steelers to open the season.

“He’s really been detailed and put on some weight and he’s still moving like he moves. He’s going to be dangerous,” added Bosa.

Safety Tashaun Gipson was thrilled to learn that Jackson, his locker-mate in Santa Clara, had as many sacks Sunday as he did all of last season as a rookie.

“Drake doesn’t talk that much. He’s got an old soul. I couldn’t be happier for a guy like that,” Gipson said. “We know he’s a good player, and having him make a statement like that is huge for his confidence and for this defense.”

Bosa was shut out on the sack total but was pleased with how his body responded from the 35 or so snaps he played only three days after rejoining the 49ers.

Despite playing less than his normal workload, Bosa made an impact on the game. Steelers coach Mike Tomlin acknowledged on Tuesday, the day before Bosa ended his holdout with a record contract, that the Steelers had to prepare for the star pass rusher.

“He always has to be accounted for, you have to have multiple eyes on him, and obviously it allows everybody else to do their job,” Gipson said. “He’s kind of the straw that stirs this drink, obviously. He’s the best defensive player in the league, so it was huge having him back and it was a boost for us all.”