Sources: Cavs agree to send Kyrie Irving to Celtics in deal for Isaiah Thomas

The Cleveland Cavaliers have agreed to send Kyrie Irving to the Boston Celtics in a deal for Isaiah Thomas, league sources told The Vertical.

The Celtics are sending Thomas, Jae Crowder, Ante Zizic and Brooklyn’s 2018 first-round pick to Cleveland, league sources told The Vertical.

Irving agreed to waive his trade kicker to complete the deal, league sources told The Vertical.

Irving requested a trade in mid-July after meeting with the Cavs, and the situation created an urgency for the franchise to find a suitable trade agreement. The Cavaliers are acquiring a starting point guard in Thomas, a versatile player on a team-friendly contract in Crowder and an attractive Nets’ pick.

Kyrie Irving and Isaiah Thomas compete during the East finals.

Boston now has fortified a potential starting five of Irving, Gordon Hayward, Jaylen Brown, Marcus Morris and Al Horford, while keeping 2017 No. 3 overall draft selection Jayson Tatum, valuable reserve guard Marcus Smart and the Lakers’ protected first-round pick in 2018.

Thomas, a two-time All-Star, is coming off his best season for Boston, averaging 28.9 points and 5.9 assists. His season ended because of a hip injury during the Celtics’ loss to the Cavs in the Eastern Conference finals.

Irving averaged 25.2 points and 5.8 assists for the Cavs, who lost to the Golden State Warriors, in the NBA Finals. The four-time All-Star helped the Cavs win an NBA championship in 2016 and was the 2011-12 NBA Rookie of the Year.

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