Former Clipper Glen "Big Baby" Davis sat out the 2015 season with injury after playing the 2014-15 season with the Clippers. He averaged 4 points, 2.3 rebounds, 0.5 assists a game (12.2 minutes/game). While not exactly breathtaking, Davis provided energy off the bench as a fringe bench player.
Davis recently noted his continued desire to play in the NBA again. He's only 30 years old, so there's still some tread left on his wheels. Before he suits up again however, Davis did say that he needed lose about 30 pounds to get to his desired game weight of 300. To give you an idea, Davis is listed at 289 pounds...so he's definitely added some pounds during his time off.
All this matters for the Clippers because of their quest to reload/rebuild their bench. While Big Baby represents an unexciting bench option, he has played for Doc Rivers before and would be a cheap bench option in the event the Clippers sought to focus their limited resources on acquiring a wing player. With Blake Griffin and DeAndre Jordan anchoring the 4 and 5 slots, the Clippers simply need a player than play perhaps 15 minutes a game.