Robinson, who the Celtics had pondered flying to Portland for Friday's game due to a shorthanded roster following a five-player deal consummated at Thursday's trade deadline, had been battling flu-like symptoms during his final days with the New York Knicks and his condition required a precautionary hospital visit Friday. He spent the night at an area hotel, according to the team.
Because of his condition, Robinson will not join the team on this current four-game road trip, including Sunday's game in Denver. Instead, he's expected to make a far more dramatic debut Tuesday night at the TD Garden when his old team visits for the start of a three-game homestand.
Forward Marcus Landry, the other player received from the Knicks in a deal that sent Eddie House, J.R. Giddens, and Bill Walker to New York, also took his physical Friday, but has an ankle sprain and will be sidelined for a few days as well.
Robinson will wear No. 4, while Landry has picked No. 12. Coincidentally, those were the numbers worn by Giddens and Walker.
Chris Forsberg is the Celtics reporter for ESPNBoston.com. Follow him on Twitter.