Bismack Biyombo’s back and knees cause concern for at least one team

Ryan Feldman of The Hoops Report:

"I was told by a trusted league source today in New York at NBA Draft media day that Bismack Biyombo has a medical red flag with is back.Biyombo’s medical report was handed out to every single NBA team by his agent. At least one team’s medical staff decided there was an issue with his back that they deemed a red flag. The source said some teams may have decided it wasn’t that much of an issue, but some teams have decided it is an issue.The source said there are also some question marks on the medical report regarding Biyombo’s knees, but the source said his knees weren’t enough of an issue to be considered a red flag."

For a guy whose biggest strength is athleticism, this is pretty concerning.