Auburn got its 15th commitment for 2011 when Keymiya Harrell, a defensive end from Plantersville, Ala., said he'll sign with the Tigers in February, according to several recruiting websites.
The 6-foot-5, 235-pound Harrell chose the Tigers over Tennessee and Mississippi State.
Scout.com ranks Harrell as a three-star recruit, the No. 50 defensive end in the nation. Rivals.com does not have him ranked.
Harrell made 75 tackles and nine sacks as a junior for Dallas County High, according to Scout.
He is the third defensive lineman in the class, joining end JaBrian Niles of Mobile, Ala., and tackle Angelo Blackson of Bear. Del.