SACRAMENTO — With sleek black uniforms and a little bit of their new swagger, the Nets walked into Sleep Train Arena on Sunday night and handily defeated the Sacramento Kings.

For the talented Nets, it was one more early season victory as they seek to gain traction in Brooklyn, their new home. For the Kings, it was one more loss in a season of uncertainty: no one seems to know how much longer the team will call this city home or what will become of its charming but outdated arena.

The Nets bask in being in a borough that seems to grow more vibrant by the day. The Kings? They still must answer how their arena, which still reads Power Balance Pavilion on its front, got its curious new name. It is actually part of a naming-rights deal with Sleep Train Mattress Centers. But it also seems indicative of the franchise’s being neither here nor there.

Back in April 2011, it seemed certain that the Kings would move south to Anaheim. However, the team’s owners, Joe and Gavin Maloof, decided against filing for relocation shortly after Kevin Johnson, the mayor of Sacramento and a former Phoenix Suns point guard, made a last-ditch plea at an owners meeting in New York.