 Miller is often compared to KSC's goalkeeping legend Oliver Kahn, who played for the club from his childhood until the 1994 transfer to Bayern Munich, but does not feel comfortable with the comparison.The fans nicknamed him "Killer Miller" after a sensational DFB-Pokal performance against Mainz 05 on 21 September 2004, when he saved all three penalty attempts from the Mainz side during the penalty shootout.Another of his high-quality performances for KSC came on 16 October 2006 in away derby at 1.