BOSTON, June 19 (AP) -- President Bush has offered his congratulations to the Boston Celtics for winning their 17th NBA championship.

Team owner Wyc Grousbeck says the president called him Wednesday, one day after the Celtics beat the Los Angeles Lakers in Game 6 and secured their first title in 22 years. Grousbeck says "that helped it sink in.''

Grousbeck says Bush told him he really enjoyed the game and that the Celtics made Boston proud.

Grousbeck says it was "a very gracious, generous phone call.''