Marion left the team in the middle of its three-game road trip following Sunday's 101-83 win over the New York Knicks to fly back and receive tests at Cleveland Clinic Sports Health. He did not play against the Knicks or the Washington Wizards in the first two games of the trip and will not be with the Cavs for the trip finale in Detroit on Tuesday.
"I knew before Shawn wasn't feeling great and that's the reason he wasn't playing, because he wasn't healthy," Cavs coach David Blatt said prior to shootaround Tuesday morning in preparation for the Pistons game. "So we really wanted to give him a chance to get through this problem as we have done on several occasions this year with other players. And I think it's good. It's good that he'll take this time to rest and rehabilitate and get the treatment that he needs and to come back when he's fully ready to play."
The 16-year veteran has been experiencing discomfort in the hip ever since Cleveland's five-game West Coast road trip in early January.
After starting 23 games earlier in the season, Marion has fallen out of the Cavs' rotation, playing a total of 39 minutes in Cleveland's eight games in February. Part of that was because of his hip, but part of that was also because of the emergence of wing players J.R. Smith and Iman Shumpert after being acquired from New York last month.
"Primarily, I just don't think Shawn was healthy," Blatt said of his eight-man rotation without Marion. "But obviously when things are going good, you don't feel the need to change it too, too much."
Marion is averaging career lows in points (4.9), rebounds (3.5), assists (0.9) and minutes (20.0) per game this season. He revealed in January that he plans to retire after the season.