Paul Pierce called it a career earlier this week when he signed a one-day deal with the Boston Celtics, effectively retiring him as a Celtic.Pierce signed a ceremonial contract with the Celtics in order to retire as a Celtic, the place where he truly made his name for 15 seasons in the NBA, winning an NBA Championship and being given the Finals MVP award in 2008. During those Finals that year, he averaged 22 points a game.He was a 10-time All-Star during his time in Boston, and alongside Kevin Garnett and Ray Allen, was a key piece of the new 'Big Three' at the team, a name based on the original 'Big Three' Larry Bird, Kevin McHale, and Robert Parish.Yet, despite what he helped the team achieve, Pierce was traded away by general manager Danny Ainge on the day of the 2013 NBA draft to the Brooklyn Nets alongside Kevin Garnett, and Jason Terry in exchange for future first-round picks in the 2014, 2016, and 2018 drafts and Kris Humphries, Gerald Wallace, Kris Joseph, MarShon Brooks, and Keith Bogans.When he finally came back to the Celtics earlier this week to sign his ceremonial contract, he wanted to make sure he trolled Ainge for making the decision to trade him away to the Nets over four years ago.According to ESPN, the 10-time NBA All-Star showed up at the Boston Celtics practice facility in Waltham, Massachusetts, wearing a throwback Inglewood T-shirt and a pair of Nets basketball shorts.

Tugging at his shorts, Pierce said to Ainge: "Hey Danny, see this? This is where you sent me!"

All is forgiven now though, as he later followed Boston's president of basketball operations into his office, put on a Celtics t-shirt and signed a one-day contract with the team that drafted him 19 seasons earlier, retiring with the team in the process.

"Like I said from the beginning. I always wanted to retire as a Celtic. We did it quietly. No need to make a spectacle out of it.''

Sure enough, he didn't, but he couldn't help but take a dig at Ainge and show what part of history helped the Celtics become the team which they are today. He retires as Boston's all-time leader in 3-point field goals (1,823), free throws (6,434) and steals (1,583).