The 6-foot-6 wing averaged just 1.7 points and 1.6 rebounds in 10.3 minutes per game as a freshman last season, but sources told ESPN that Kentucky coach John Calipari did not want to lose him.
However, Matthews, a top-100 player coming out of Saint Rita High in Chicago, was concerned about his role in Lexington. He visited both Xavier and Michigan before choosing the Wolverines.
Matthews will sit next season and have three years left in Ann Arbor.
John Beilein's program had significant turnover this past offseason. Caris LeVert graduated, and four players transferred out of the program: Aubrey Dawkins (UCF), Spike Albrecht (Purdue), Kameron Chatman (Detroit) and Ricky Doyle (Florida Gulf Coast). Beilein's top two assistants, LaVall Jordan (Milwaukee) and Bacari Alexander (Detroit), both got head-coaching jobs.