Simmons' hand will placed in a cast that he will have to wear for the next four weeks. Once the cast is removed, the Braves' medical staff will re-evaluate the injury and gain a better understanding of when the exciting rookie shortstop might be able to return.
The Braves will not announce a corresponding roster move until later this week. There is certainly a chance they could recall Tyler Pastornicky, who spent the season's first two months as the team's starting shortstop. Pastornicky was sent to Triple-A Gwinnett when Simmons was promoted from Double-A Mississippi at the start of June.
With Gwinnett scheduled to play on Thursday night, the Braves likely will not announce their corresponding roster move until that game is complete.
Simmons sustained the injury when he slid headfirst into second base while extending a routine single into a double during the fourth inning of Sunday's 4-3 win over the Phillies.
Mark Bowman is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.