Sources this morning are confirming to Steve Bulpett, longtime Celtics beat writer for the Boston Herald that Boston's deal for Kevin Garnett is essentially completed.

One involved source said the final package will have the Celts sending Al Jefferson, Ryan Gomes, Gerald Green, Sebastian Telfair, Theo Ratliff and a No. 1 pick to Minnesota to acquire Garnett.

Further word is that the Celts and Garnett have reached an agreement in principle on a contract extension. You may recall a report here that Danny Ainge would not do the deal without such a guarantee of Garnett?s presence, and it appears now that the perennial All-Star is willing to forego the opt-out in his current deal for next summer and cast his lot with Paul Pierce, Ray Allen and the Celtics.