Commissioner David Stern suspended Arenas indefinitely without pay this week for allegedly bringing unloaded firearms to the Verizon Center, the team's home facility, last month.
Arenas and teammate Javaris Crittenton reportedly pulled guns in the locker room during a dispute about a gambling debt, incurred on a team charter flight.
"One thing my teammates and I take very seriously is that being a positive role model is something that we don't take lightly," team captain Antawn Jamison told a sellout crowd of 20,173 fans in a pre-game speech.
No Arenas jerseys or pictures were displayed at the game and team officials banned card games and all gambling on charter flights.
Disney's 'Jessie' to feature network's first engagement
Rosie O'Donnell unveils nearly 50-pound weight loss