"We found out Thursday that he has a separated shoulder," Charles said today.
"I feel bad for him. But at least he found out now and not later. So he can have his surgery now and be ready for his high school season."
Charles was hoping to have Lawrence, a talented and versatile offensive star for the summer.
"Yes, it really hurts us," he said. "And it's hard to replace him especially after just finding out this week."
Lawrence is a player that can make an impact in a game on both ends of the court too. He has the ability to produce points and also be effective in transition. His long arms enable him to get in the passing lanes too and deflect opposition passes.
"We're going to miss him," said Charles. "We will just have to rely upon our bench more this summer."
Lawrence recently announced he is going to attend South Kent School in Connecticut this Fall.