Collison (shoulder) is officially listed as out for Tuesday's game against the Mavericks. Collison came into the game considered as doubtful, so it's not a surprise he isn't able to give it a go. He went through warm-ups with the team, but just didn't feel healthy enough to play. Considering he was almost able to participate Tuesday, it seems likely he'll be able to play in the Kings' next game Thursday against the Memphis Grizzlies.