Published September 29, 2011
| Sports Network
Hosmer, who also won the award for July, had seven doubles, five home runs, a .557 slugging percentage, .360 on-base percentage and 19 RBI in 25 games during September. He led A.L. rookies with 37 hits and 21 runs scored.
Other players receiving votes included Hosmer's teammates Salvador Perez and Mike Moustakas, Chicago White Sox third baseman Brent Morel, Tampa Bay Rays right-hander Jeremy Hellickson, Oakland Athletics second baseman Jemile Weeks, Baltimore Orioles right-hander Pedro Strop and Minnesota Twins infielder Trevor Plouffe.