The Boston Celtics dove head first into the free agent market yesterday, inking All-Star forward/center Al Horford to a four-year, $113 million max deal.

Horford, who was considered one of the top free agents heading into the signing period, met with the C's on Friday and made the move official Saturday.

The nine year NBA vet also changed his twitter profile picture to the Celtics' logo and updated his bio

The addition of Horford now gives the C's a big man that can score in the paint, from mid-range and a bit from the perimeter.

Last season Horford averaged 15.2 points and 7.3 rebounds per game for Atlanta. For his career the former Florida Gator has averaged 14.3 points and 8.9 rebounds per game.