Matt Barnes -- Psyched About Clippers Sale ... NO MORE DISTRACTIONS!

Another Clippers player is signing off on the Steve Ballmer deal -- with Matt Barnes telling TMZ Sports he's excited to turn the page on the Donald Sterling era so the team can finally focus on basketball again.

With the NBA signing off on the $2 billion deal ... and team owners likely to grant final approval ... Barnes told us he and his teammates are really happy to "put that situation behind us."

As we previously reported, Matt's teammate Chris Paul was seen giving a bro hug to Ballmer at a Kings game over the weekend ... and they chatted it up like two old friends.