Ohio State big man Jared Sullinger has been medically flagged by NBA doctors who have expressed concern over the player's back, multiple league sources told ESPN.com on Monday. Sullinger, who is projected to be a lottery pick in the draft on June 28, underwent a series of medical tests at the draft combine a week ago. A number of NBA team doctors have reviewed the information from the NBA and have told their front office staff that Sullinger's back issues could shorten his NBA career, and some have advised their teams not to draft him in the first round. Sullinger's agent, David Falk, told ESPN.com by phone that he was not in a position to comment on the story. Read more: http://espn.go.com/nba/draft2012/st...edically-red-flag-jared-sullinger-sources-say