Mitchell Robinson is leaving the New York Knicks and is set to sign with the Boston Celtics, according to multiple reports. The Athletic and Yahoo Sports both say the move follows the Knicks’ inability to retain Robinson under NBA salary-cap restrictions, including the second apron. One report attributes the Knicks’ situation to contract terms that would push them beyond allowable spending thresholds.

Across the coverage, details of the reported contract vary slightly. Yahoo Sports reports Robinson agrees to a three-year deal with Boston worth $47.4 million, while another Yahoo Sports headline describes a four-year agreement. The common element across sources is that Robinson signs as a free agent with the Celtics, joining a rival team.

Collectively, the reports frame the departure as driven by the combination of Robinson’s expected market value and the Knicks’ cap constraints, which prevent them from matching or keeping him under current financial rules.