Morris will join the Knicks on a one-year deal, Shams Charania of The Athletic reports.
Morris rejoins the Knicks after appearing in 49 games between the 76ers and Cavaliers last season, where he averaged 6.4 points and 2.7 rebounds in 16.7 minutes per game in the regular season. Should he make the final roster, the 35-year-old will likely serve as a depth piece for a team with strong depth at the forward spots.