Unforgiven (2008) was a professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE), which took place on September 7, 2008 at the Quicken Loans Arena in Cleveland, Ohio.Even though he fell to Shawn Michaels in an Unsanctioned Match at Unforgiven 2008, Chris Jericho replaced an injured CM Punk to compete in a Championship Scramble for the vacant World Heavyweight Title.