Shaquille O’Neal has decided to join the Boston Celtics, according to sources with knowledge of the situation. He was expected to tell the team of his intentions Wednesday morning, but there had been no word as of the afternoon.

The length of the contract is not known, but O’Neal, who has been seeking a two-year deal, will play for the veteran’s minimum of $1.4 million annually.

Celtics coach Doc Rivers began pursuing O’Neal last month when the two met in Orlando. Boston and the Atlanta Hawks were the two clubs most interested in O’Neal, and sources say O’Neal chose the Celtics because he believes they have a better chance of winning what would be his fifth NBA championship.

O’Neal, 38, averaged 12 points and 6.7 rebounds last season for the Cleveland Cavaliers. In the Cavs’ six-game loss to Boston in the Eastern Conference semifinals, he averaged 13.5 points and 5 rebounds in 23 minutes a game.