ATLANTA >> With all eyes on the quarterbacks, Chris Boswell’s strong right leg stole the spotlight in the season opener.

Boswell booted six field goals, three of them longer than 50 yards, to account for all of Pittsburgh’s scoring as Justin Fields and the Steelers grinded out an 18-10 victory over the Atlanta Falcons on Sunday.

Fields stepped in after Russell Wilson’s debut with the Steelers was put on hold by a calf injury —- getting a big assist from Boswell and a defense that made life miserable for Kirk Cousins in his first game as Atlanta’s quarterback.

“Just having a weapon like him on the offensive side of the ball, we only have to get the ball to the 40,” Fields said of Boswell. “It makes our job way easier.”

Boswell connected from 57, 56, 51, 44, 40 and 25 yards — and even stepped in to handle a crucial punt in the closing minutes after Cameron Johnston was injured.

Johnston went down when an Atlanta player was blocked into him, actually resulting in a penalty on the Steelers. Pittsburgh was forced to punt again, with Boswell handling the duties.

He did just fine, getting off a 43-yard punt the Falcons weren’t able to return.

“I can’t say enough about Bos, not only in terms of him kicking the ball, but that punt was timely,” Steelers coach Mike Tomlin said.

Two plays later, Cousins threw his second interception to essentially seal the Pittsburgh victory.

Wilson was ruled out just before the game and worked the sideline as the inactive third quarterback. Pittsburgh kept the play-calling close to the vest under new coordinator Arthur Smith, who was fired in January after three seasons as Atlanta’s head coach.

Smith certainly got a bit of payback against his former employer, while new Falcons coach Raheem Morris endured a tough start to a season of high expectations in Atlanta, which has endured six straight losing campaigns.