Boston agrees to a contract with veteran center Mitchell Robinson worth $47.4 million over three years, according to reports citing an Associated Press source and subsequent team updates. The agreement includes a player option for the third season. The deal cannot be signed until July 6, the AP source said, speaking on condition of anonymity because the paperwork was not yet eligible to be finalized. Robinson, listed at 7 feet tall, spent his entire eight-year NBA career with the New York Knicks after being selected by them in the second round of the 2018 draft. He enters the Celtics offseason fresh off winning an NBA title with the Knicks, while Boston previously had been eliminated in the first round of the playoffs after finishing the regular season with 56 wins and the No. 2 seed in the Eastern Conference. Multiple reports frame the move as an effort by Boston to strengthen its frontcourt and rim protection, with Robinson having produced on defense and rebounding across his career.