Pierce, Celtics agree to four-year deal

Paul Pierce and the Boston Celtics have agreed to a four-year, $61 million deal, a source told ESPN.com's Ric Bucher on Saturday.

A source told ESPN.com the fourth year of Pierce's contract -- the main point of contention in the negotiations -- is fully guaranteed.

Multiple media outlets had reported Friday that the sides had reached an agreement on a four-year deal between $60 and $62 million.

Click HERE to read the full story.