Ann Arbor — Freshman center Colin Castleton’s Michigan career has hit a snag before it has truly begun.

According to interim coach Saddi Washington, Castleton broke his right shooting hand two weeks ago. A Michigan spokesman said the injury occurred during practice but didn't know specifics about what caused it.

However, the injury didn’t require surgery and Castleton has been wearing a cast since.

Washington, who is filling in for coach John Beilein while he recovers from heart surgery, said Castleton will still travel with the team to Spain from Aug. 17-26 but won’t participate in Michigan’s three exhibition games.

“We expect him to get back to full basketball activities when we get back,” Washington said Thursday at Crisler Center before the team’s fourth practice for its 10-day overseas trip.

“He's done a great job of staying engaged on the sideline. The fact that he is going to be able to go over to Spain and still share in this experience with the team I think, at the end of the day, is going to be really good for his personal development, as well.”

More: With Beilein healing, Michigan readies for Spain trip

Castleton (6-foot-11, 210 pounds) is part of Michigan’s highly touted five-member freshman class, along with forwards Ignas Brazdeikis and Brandon Johns and guards Adrien Nunez and David DeJulius. He's expected to push redshirt sophomore Austin Davis for minutes at the backup spot behind junior Jon Teske, but there's a possibility he could redshirt depending on how many big men Beilein wants to carry this season.

Despite the rough start, Washington said Castleton hasn’t let the early setback negatively affect him.

“He has good energy on the sideline and he's been soaking it all in,” Washington said. “To his credit, he hasn't unplugged because he knows if you want to put yourself in position to grow, you got to stay caught up with the learning curve. He's been fun to be around even in his absence of not being able to be on the court.”

Personnel dept.

Jay Shunnar will replace Devon Mulry as Michigan's graduate manager this season. He will assist in analyzing film, preparing scouting reports and game plans and running on-campus recruiting events.

Shunnar, an Ann Arbor native, spent the past two seasons coaching the varsity boys’ basketball team at Ann Arbor Huron High. He also spent time as an assistant coach at Ann Arbor Skyline High following his three-year playing career at Toledo.

Mulry, who worked his way up from a student manager during his seven years at Michigan, left for Lake Superior State, where he will be an assistant coach on Steve Hettinga’s staff.