Brooklyn Nets
After the Nets' move to Brooklyn, the team introduced a new superhero mascot named BrooklyKnight (a pun on the demonym "Brooklynite") on November 3, 2012. In his first appearance, he was lowered from the ceiling of the Barclays Center amid sparks and fanfare and introduced by Nets PA announcer David Diamante: "Here to defend Brooklyn, he's the BrooklyKnight." The mascot was co-created by Marvel Entertainment, a sister company to NBA broadcasters ABC and ESPN. The character also starred in 32-page comic book published by Marvel titled "BrooklyKnight #1", written by Jason Aaron with art by Mike Deodato. After the Nets' second season in Brooklyn, the BrooklyKnight mascot was retired.
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.