C's sign Sullinger, Melo, Joseph

The Boston Celtics didn't waste any time inking their three selections from last month's draft.

One day after introducing the rookies, Boston formally announced it had reached an agreement with first-round picks Jared Sullinger and Fab Melo and second-round pick Kris Joseph.

Terms of the deal were not announced, but the base salary for first-round picks was slotted at $1.089 million for Sullinger (21st overall pick) and $1.045 million (22nd). First-round draft picks can be inked at up to 120 percent of that base salary, which the Celtics have done in each of the past two seasons, giving first-round picks Avery Bradley (19th in 2010) and JaJuan Johnson (27th in 2011) a slight bump.

Second-round contracts typically check in at the minimum, which for next season is $473,604.