All-American point guard Melo Trimble is withdrawing from the NBA Draft so that he can return to Maryland for his junior season, a source told CBS Sports.

A formal announcement is expected soon.

Trimble was the last relevant underclassman to make a decision before Wednesday night's deadline to withdraw. He went back and forth throughout the process, sources told CBS Sports. But the 6-foot-3 sophomore ultimately listened to what NBA people told him -- specifically that he's unlikely, at this point, to make an NBA roster, and that, if he didn't withdraw, he could go unselected in next month's draft.

It's a huge development for Mark Turgeon.

If Trimble had remained in the draft, the Maryland coach would've been without all five starters from last season's team that won 27 games and advanced to the Sweet 16 of the NCAA Tournament. But Trimble's decision to withdraw ensures the Terrapins will this season have an experienced difference-maker at college basketball's most important position. He averaged 14.8 points and 4.9 assists last season.