Simmons hurt his finger on a head-first slide in Sunday's game at Philadelphia.
The Braves say an examination with Dr. Gary Lourie on Monday confirmed the injury and Simmons will be placed on the 15-day disabled list.
Simmons' hand will be in a cast for four weeks. His status will be updated after the cast is removed.
The 22-year-old Simmons began the year in the minor leagues. Another rookie, Tyler Pastornicky, opened the season as the starting shortstop and may be recalled to replace Simmons.
Simmons was called up on June 1 and is hitting .294 in 33 games. He was named the NL rookie of the month for June.
Andrelton Simmons slides into second base.
http://accesswdun.com/article/2012/7/250505