Mitchell Robinson says the hand injury that left him uncertain for the New York Knicks’ NBA Finals opener occurred before the Finals after he punched a truck while worried about his younger brother’s health. The Winnipeg Free Press and Yahoo Sports both report that Robinson described the incident in a Facebook post written Sunday, also addressing broader mental health concerns he said he dealt with during the season. Yahoo Sports adds that Robinson agreed to leave the Knicks and sign with the Boston Celtics last week, and his post reflects on both the injury and the mental health issues he raised during the regular season. Both outlets present Robinson’s account as his explanation for how the injury happened and note that it affected his availability for the opening game of the Finals. Neither outlet provides additional independent verification of the truck-punching claim in the provided text, but both attribute the details to Robinson’s own statements. The reports frame the injury as a factor in his uncertain status heading into the Finals opener, alongside his disclosed concern for his brother.