Avery Bradley is giving opponents an increasingly more difficult choice as he lines up with Kevin Garnett on the pick-and-roll. Right now, every opposing defender is going to blanket Garnett, trying to stymie his twisting, turning post move that usually results in a swished jumper. On Tuesday night at Wells Fargo Center, the 76ers made that same choice, leaving Bradley open on the two-man game and on the fast break. And perhaps his performance in the Celtics’ victory can finally dispel the perception that Bradley is an erratic shooter. In a classic trap game — the Celtics had played once in eight days — Bradley helped the Celtics seize and hold a lead by hitting 10 of his first 12 shots, and Garnett spun and turned his way to 18 points in a lighter-than-expected 28 minutes in the 109-101 victory. Bradley had a team-high 22 points, all in the first three quarters, as the Celtics spent the evening staving off Philadelphia rallies and burning the 76ers defense with crisp ball movement. Celtics coach Doc Rivers said he feared rustiness after such a long respite, but Bradley’s shooting, along with strong defense after a rough start, helped the Celtics win in a venue where they have struggled mightily. “He was good all around,” Rivers said of Bradley. “His defense was terrific. And he’s starting to make the little pull-up jump shot. He’s been making the threes for the most part and he keeps shooting them and we want him to. I’m really happy with his pull-up off the dribble, that’s a big shot for us. And he’s starting to make that — that’s big.” Bradley is shooting 31 of 54 (57.4 percent) over the past five games and his effectiveness from the perimeter is creating opportunities for teammates. Garnett scored 6 of Boston’s first 8 points and the ball movement left him with single coverage on several occasions against Spencer Hawes. Garnett one-on-one against almost anyone is a favorable matchup. “I think the [talent] that Danny [Ainge] has put on our team, we can definitely put the ball in the basket,” Garnett said. “That’s not primary. Our primary [goal] is to stop the ball. We’re a defensive team that can score the ball. “When somebody [like Avery] is aggressive, obviously it makes it easier on the primaries. I said this since he’s come back from his injury; he’s playing with a certain level of confidence. He knows he’s going to have minutes. We’re asking a lot of him. I think he’s meeting the challenge. I think he’s playing great, considering what you ask him.”