Daniel Theis
When the season began, the Clippers were banking on the play of Mason Plumlee as their backup center. Ivica Zubac is one of the most reliable bigs in the league with his strong rebounding, ability as a pick-and-roll threat, and overall interior presence. Having a backup as solid as Plumlee only made the Clips' center rotation that much better.
But early in the season when Mason went down with an injury, LA's rotation was compromised. Suddenly, they were left with a hole on the floor when Zubac went to the bench. Left without a true backup center on the roster, the Clippers signed Daniel Theis.
For the first several weeks of his tenure as a Clipper, Theis was incredibly productive. He scored efficiently and showcased instant chemistry with the likes of James Harden and Russell Westbrook. But since then, his play has regressed a bit. With Mason Plumlee returning from injury back in January, there became less need for heavy Theis minutes.
It is entirely possible LA opts to roll with just one backup center for most of the playoffs. If that is the case, they will likely choose to go with the player who holds more tenure with his teammates in Plumlee.