Isaiah Thomas through the years

March 12, 2009: Thomas drives to the hoop past Stanford's Lawrence Hill and Landry Fields during the 2009 Pac-10 Men's Basketball Tournament.

March 13, 2010: Isaiah Thomas and Justin Hoiliday of the Washington Huskies celebrate after a win over the California Golden Bears.

March 19, 2010: Isaiah Thomas celebrates his 3-pointer in second half action.

March 20, 2010: Isaiah Thomas (2) celebrates walking off the court after the game against the New Mexico Lobos in the second round of the 2010 NCAA men's basketball tournament at HP Pavilion.

Jan. 20, 2011: Isaiah Thomas encourages the crowd after scoring against Arizona in the second half of an NCAA college basketball game.

March 12, 2011: Isaiah Thomas of the Washington Huskies reacts as the Arizona Wildcats miss a buzzer shot and the game goes into overtime.

June 25, 2011: Isaiah Thomas of the Sacramento Kings smiles for the camera following a press conference.

Jan 28, 2013: Isaiah Thomas (22) passes the ball against the Washington Wizards during the second half at the Verizon Center.

March 13, 2013: Thomas points to Bulls point guard Nate Robinson during a timeout.

October 25, 2013: Isaiah Thomas (22) scores a basket against the defense of Los Angeles Clippers center DeAndre Jordan (6).

Feb 12, 2014: Isaiah Thomas (22) drives to the basket during the first half against the New York Knicks at Madison Square Garden.

Oct 16, 2014: Phoenix Suns guard Isaiah Thomas (3) looks to pass the ball against the San Antonio Spurs in the first half at US Airways Center.

Nov. 24, 2014: Kyle Lowry and Thomas battle for the ball at the Air Canada Centre.

Jan. 4, 2015: Kyle Lowry (7) embraces Phoenix Suns guard Isaiah Thomas (3) during a second quarter time out at US Airways Center.

Nov 4, 2014: Phoenix Suns guard Isaiah Thomas (3) drives to the basket against Los Angeles Lakers forward Ed Davis (21) during the first half at Staples Center.

Oct 31, 2014: Phoenix Suns guard Isaiah Thomas (3) runs up the court against the San Antonio Spurs in the first half at US Airways Center.

Feb. 23, 2015: Boston Celtics guard Isaiah Thomas reacts in the fourth quarter against the Phoenix Suns at US Airways Center.

April 12, 2015: Isaiah Thomas (4) passes the ball against Cleveland Cavaliers center Timofey Mozgov (20) in the second quarter at TD Garden.

Boston Celtics guard Isaiah Thomas (4) works for the ball against Cleveland Cavaliers guard Kyrie Irving (2) during the second quarter in game three of the first round of the NBA Playoffs at TD Garden.

Jan. 2, 2016: Boston Celtics' Isaiah Thomas, left, with his son Jaiden before an NBA basketball game against the Brooklyn Nets in Boston.

March 20, 2016; Philadelphia 76ers guard Ish Smith (1) goes up for a shot and is fouled by Boston Celtics guard Isaiah Thomas (4).

Nov 3, 2016: Isaiah Thomas (4) drives to the basket on Cleveland Cavaliers forward LeBron James (23).

Dec. 1, 2016: Kelly Olynyk, Isaiah Thomas, Jonas Jerebko, and Brad Stevens, singscarols with the kids at Boston Children's Hospital.

Dec. 25, 2016: Isaiah Thomas of the Boston Celtics looks on during a time-out against the New York Knicks at Madison Square Garden.

Jan 30, 2017: Boston Celtics guard Isaiah Thomas (4) defends against Detroit Pistons forward Marcus Morris (13) during the second half of the Boston Celtics 113-109 win over the Detroit Pistons at TD Garden.

Feb. 19, 2017: Thomas reacts in the NBA All-Star Game.

May 2, 2017: Isaiah Thomas reacts during the first quarter in Game 2 of the second round of the 2017 NBA Playoffs against the Washington Wizards.

Sep. 7, 2017: Isaiah Thomas poses with his jersey during his introductory press conference with the Cleveland Cavaliers.

Dec. 21, 2017: Cleveland Cavaliers guard Isaiah Thomas (right) sits on the bench beside forward LeBron James (23) in the third quarter against the Chicago Bulls at Quicken Loans Arena. Mandatory Credit: David Richard-USA TODAY Sports

Jan. 3, 2018: Thomas hugs ex-teammate Marcus Smart after the Cavaliers' game against the Celtics.