The Boston Celtics have elected to let Jared Sullinger become an unrestricted free agent, rescinding a one-year qualifying offer, according to numerous reports.

“Jared’s a good kid and I’m grateful for what he gave us and I wish him well,” Celtics president of basketball operations Danny Ainge told the Boston Globe.

“I hope he gets a good opportunity. We just feel this is the best thing for our team.”

Sullinger averaged 11.1 points and 7.7 rebounds in four seasons with the Celtics, who selected him with the 21st overall pick in the 2012 draft.

He led the Celtics in rebound last season with 8.3 per game, despite averaging only 23 minutes.

HEAT: Udonis Haslem is coming back for a 14th season in Miami, Tyler Johnson’s move to Brooklyn is canceled and a roster that had plenty of holes a few days ago suddenly seems revamped.

Haslem signed a one-year deal worth $4 million – significantly more than he originally expected – on Sunday, the same day that Miami decided to match a $50 million, four-year offer sheet that Johnson received from the Nets.

And in the span of a few hours, the Heat filled plenty of roster spots as they continued their offseason transition following the departure of Dwyane Wade to Chicago.

A person with direct knowledge of the situation confirmed the decision about Johnson, which was first reported by Yahoo Sports.

In other moves, Miami signed free agents Wayne Ellington and James Johnson, Derrick Williams’ contract was finalized, Luke Babbitt arrived in a trade with New Orleans, and Willie Reed agreed to terms on a contract that will be complete in the coming days.

The Heat gave up a second-round pick and cash for Babbitt, a 6-9 forward known for his 3-point shooting.

PISTONS: San Antonio has declined to match Detroit’s three-year, $21-million offer sheet to restricted free agent center Boban Marjanovic, a person with knowledge of the situation told the (Detroit) Free Press.

The Pistons signed the 7-foot-3 Serbian to an offer sheet late last week, and the Spurs had three days to match but signaled their intentions by reportedly agreeing to a two-year deal with center Dewayne Dedmon.

Marjanovic, 27, played 54 games for the Spurs as a rookie last seasons.

TRAIL BLAZERS: Portland matched a four-year, $75 million offer by the Brooklyn Nets for restricted free agent Allen Crabbe, according to media reports.

Crabbe, a 6-foot-6 swingman, averaged 10.3 points and 2.7 rebounds in 81 games last season, his third with the team.

Meyers Leonard, a 7-1 center, also is staying in Portland, agreeing to a four-year, $41 million deal.

GRIZZLIES: Memphis acquired guard Troy Daniels in a trade with the Charlotte Hornets and agreed to terms with him on a three-year contract, according to tweets from the player and his representatives.