According to Celtics spokesman Jeff Twiss, the 10-time NBA All-Star will likely be introduced at a news conference at 6:00 p.m. ET on Tuesday.

According to multiple sources close to situation, Minnesota will send Garnett to Boston for five players and a pair of first-round draft picks. Al Jefferson is the centerpiece of the deal for Timberwolves Vice President of Basketball Operations Kevin McHale, who will also get Theo Ratliff and his expiring contract, Gerald Green, Ryan Gomes, Sebastian Telfair and a pair of 2009 first-round picks.

The Celtics' draft pick will be top-three protected and the other pick will be the one Minnesota originally dealt to Boston in the trade that sent Ricky Davis to the T'Wolves for Wally Szczerbiak.

According to sources, Garnett will also sign a three-year extension with the Celtics. He has two years left on his current deal.