Outside of their pair of selections in the 2026 NBA Draft, the New York Knicks made just one addition in the wake of their NBA championship victory. They won the title with potentially the single-best backup big man in the NBA, who now plays for the Boston Celtics. New York needs big man depth, and their failed attempt at signing Moussa Cissé as a restricted free agent shows exactly where the center market is almost a month into free agency. Did Jack Kayil solve the Knicks' center deficit in Las Vegas? And with the Knicks likely needing to use that last roster spot on a third big man, Kayil seemed like a lock to be playing in Serbia.