McGwire's motive disputed by Steroid SupplierA convicted drug dealer, Curtis Wenzlaff, who used to supply steroids to Mark McGwire as per his claims said that he believes that the baseball slugger was not completely truthful about the reasons behind him using performance-enhancing drugs in his interview with Bob Costas on the MLB Network on Jan. 11, 2010.

Wenzlaff said while speaking with ESPN’s “Outside the Lines” on Thursday that the goal of McGwire was to use steroids for getting “”bigger, faster, stronger” for improving his on-field performance.

This revelation is bound to dent image of the baseball slugger once more for sure.