Isaiah Thomas will not need to undergo offseason hip surgery.

Thomas missed the end of the Boston Celtics' playoff run due to the hip injury.

"Isaiah is making good progress," Danny Ainge said. "He's out on the court; he's shooting. He's full-speed ahead on the stationary bike and working in the swimming pool. He's progressing nicely."

Thomas is expected to be back in time for training camp.

Thomas met with a number of hip specialists, but needed to wait for the swelling to subside before deciding on a course of recovery. 

Thomas will be an unrestricted free agent in 2018.

The Boston Celtics have agreed upon a deal with Shane Larkin.

Larkin averaged 13.8 points, 5.4 assists, and 2.9 rebounds in 72 games last season in Europe. Larkin also had a PER of 17.4

Larkin is leaving $6.3 million on the table overseas in order to return to the NBA.

Larkin last played in the NBA during the 15-16 season with the Brooklyn Nets, averaging 7.3 points, 2.3 rebounds and 4.4 assists in 22.4 minutes per game.

The Boston Celtics have signed rookie guard Kadeem Allen to a two-way contract.

Selected in the second round (53rd overall) of the 2017 NBA Draft, Allen averaged 9.8 points (45.3% FG, 42.7% 3-PT, 74.1% FT), 4.0 rebounds, 3.0 assists and 1.6 steals in 30.0 minutes over 34 games (33 starts) as a redshirt senior at the University of Arizona. The Wildcats guard spent his first two collegiate seasons at Hutchinson Community College.

The Second Team All-Pacific 12 Conference selection led the Wildcats with 53 steals, paving his way to a spot on the Pac-12 All-Defensive Team. Allen, 24, demonstrated his offensive abilities throughout the season as well, scoring a collegiate career-high 18 points in back-to-back games against Colorado (Jan. 7) and Arizona State (Jan. 12).

The Boston Celtics have signed rookie forward Semi Ojeleye. 

Taken by the Celtics in the second round (37th overall) of the 2017 NBA Draft out of Southern Methodist University, Ojeleye, 22, averaged 18.9 points (48.8% FG, 42.4% 3-PT, 78.5% FT), 6.8 rebounds, 1.5 assists and 34.1 minutes in 35 games in his lone season at SMU. The 2016-17 American Atlantic Conference Player of the Year and First Team All-AAC selection made at least three 3-pointers on 12 occasions this season, shooting at least 50.0% from beyond the arc in 10 of those contests and finishing third in the conference in three-point shooting percentage.

Ojeleye (6-7, 241 lbs), who was also named Honorable Mention All-American by the Associated Press this past season, spent his first two collegiate years at Duke University before transferring to SMU. He averaged 12.2 points (48.0% FG, 41.5% 3-PT, 78.5% FT), 4.6 rebounds and 1.0 assist in three total seasons at the NCAA level.

The Boston Celtics have signed rookie forward Abdel Nader while waiving Demetrius Jackson. 

Nader, the reigning 2016-17 NBA G League Rookie of the Year, averaged a team-high 21.3 points (44.7% FG, 34.9% 3-PT, 79.4% FT), 6.2 rebounds, 3.9 assists, 1.00 steal, 0.83 blocked shots and 33.5 minutes over 40 games with the Maine Red Claws in his first professional season. 

“We asked him to do a lot,” said Celtics assistant Jerome Allen, who coached the summer Celtics for their three games in Utah. “We asked him to guard (Jazz guard Dante) Exum. We asked him to be the quarterback in terms of communication on switches. We asked him to be the point guard and set the kitchen table. We asked him to rebound the ball. He’s probably a little fatigued.”

The Boston Celtics have waived forward Jordan Mickey.

Originally selected by Boston in the second round (33rd overall) of the 2015 NBA Draft, Mickey averaged 1.4 points (41.1% FG, 54.2% FT), 1.1 rebounds and 4.8 minutes in 41 games (one start) over two seasons with the Celtics.

Mickey also played in 35 games (34 starts) for the Maine Red Claws of the NBA G League over the last two seasons, producing 18.6 points (52.5% FG, 40.4% 3-PT, 74.8% FT), 9.7 rebounds, 1.4 assists and 3.83 blocked shots in 33.1 minutes.

Jonas Jerebko has agreed to a two-year, $8.2 million contract with the Utah Jazz.

Jerebko spent the past two seasons with the Boston Celtics.

Jerebko averaged 3.8 points in 15.8 minutes a game last season. 

Brad Stevens reached out to the parents of Gordon Hayward during his previous free agency in 2014. Stevens already had a relationship with them from when he recruited and coached him at Butler.

Stevens had finished his first season with the Boston Celtics and even though he knew they wouldn't be in a position to sign Hayward, he wanted to let the family know he hoped to reunite someday.

Stevens texed Hayward's parents again as free agency opened this year.

“His text said, ‘I hope all is well. We’re really looking forward to having Gordon come visit,’ ” Hayward Sr. said.

Hayward Sr. said that if the Celtics had defeated the Cavaliers in the conference finals, his son would have been less interested.

A big part of the Boston Celtics pitch to Gordon Hayward was the fact that the Eastern Conference represents an easier path to The Finals, according to sources. The Miami Heat also pitched this issue but to a lesser extent.

While the Utah Jazz would surely be a contender for the Eastern Conference Finals, they're stuck playing in the West where they would surely remain behind the Golden State Warriors, and possibly the San Antonio Spurs and Houston Rockets as well.

Hayward is also more likely to make All-Star teams in the Eastern Conference and possibly even start.

Salt Lake City, New Orleans, Memphis and Oklahoma City rank as the NBA's only metro areas shy of 1.5 million people, according to the U.S. Office of Management and Budget. Yet those four NBA areas are all in the Western Conference.

The Boston Celtics have agreed upon a one-year, $4.3 million deal with Aron Baynes.

Baynes opted out of his $6.5 million contract with the Detroit Pistons to become a free agent.

Baynes signed a three-year, $20 million deal with Detroit in 2015.

Baynes averaged 4.9 points and 4.4 rebounds in 15.5 minutes over 75 games last season with the Pistons.

The Celtics have a major need at center following the departures of Kelly Olynyk and Tyler Zeller.