Prudential Center
The arena was originally intended to be the home of the New Jersey Nets, but YankeeNets sold the team to Bruce Ratner, who decided he would relocate the Nets to the Barclays Center in Brooklyn. However, the construction of the arena was plagued by lawsuits and economic issues during the recession. In the fall of 2009, the Nets played two preseason games at the Prudential Center, while considering a possible move there. After the success of the preseason games at the Prudential Center, the Nets finalized a deal to move to the Prudential Center. The team played for two seasons at the venue before the Barclays Center was completed in 2012 and the team officially relocated to Brooklyn. The final NBA event at the Prudential Center before the Nets' move to Brooklyn was the 2012 NBA Draft, held on June 28, 2012.
MassMutual Center
The Springfield Armor of the NBA D-League joined the building's roster of home tenants in the fall of 2009. The franchise was purchased by the HWS Group in early 2009, and was quickly moved to Springfield for the start of the 2009–2010 season. It was affiliated with the NBA's New York Knicks, the Philadelphia 76ers, and the New Jersey Nets for two years. The New Jersey Nets, now known as the Brooklyn Nets as of 2012, became the sole affiliate of the Armor in the start of the 2011–2012 season. The Armor received their first Eastern Division Championship during the 2011–2012 season under its new head coach Bob MacKinnon. They won their final home game on March 21, 2014 in front of a sold out crowd of 7,111.