O J McDuffie Signed Penn State Nittany Lions Jersey (JSA COA) Miami Dolphins WRCustom on field style jersey with everything sewn on, size XL. Hand signed in black felt tip pen by O. J. McDuffie. This autographed jersey has been personally hand signed by O. J. McDuffie of the Penn State Nittany Lions. This autograph is certified by James Spence Authentication's (JSA) Witnessed Protection Program. That means that a JSA representative was present when this item was signed. It comes with the numbered hologram and matching