Ray Mercer vs. Tommy Morrison, billed as Test of Courage, was a professional boxing match contested on October 18, 1991 for the WBO Heavyweight Championship. Mercer and Morrison were originally scheduled to fight on August 9, 1991, but Morrison had to withdraw after cutting his right eyelid during a sparring session. Riddick Bowe stepped in as a substitute for Morrison, but then Mercer withdrew after injuring his left ankle. Bruce Seldon replaced Mercer and was knocked out in the first round by