Boston Celtics general manager Danny Ainge thinks Al Horford signed with the Sixers in free agency so he can play the power forward position exclusively.

On the Sixers, Horford will be paired with star center Joel Embiid in the frontcourt. Horford was forced to play the center position with the Celtics.

Al Horford signed a four-year, $109 million contract with the Sixers. Horford and Embiid form a lethal defensive and offensive duo in Philly. For the past few years, Horford has defended Embiid really tough when the Sixers and Celtics have played, so fans in Philadelphia are thrilled Horford is on their side now.

This past season with the Celtics, Horford averaged 13.6 points, 6.7 rebounds and 4.2 assists while shooting 53.5 percent from the field, 36.0 percent from beyond the arc and 82.1 percent from the free-throw line. Many believe the Sixers are now title contenders with Horford in the fold next to Embiid, Ben Simmons and Tobias Harris. Horford says the Sixers’ identity in 2019-20 is going to be on defense and wrecking havoc on that end of the floor.

Horford had a good run with the Celtics. He was loved by the fans, teammates and the coaching staff. The All-Star big man signed with Philadelphia for a chance to win a title. We’ll see if Philly can accomplish its goal in 2019-20.