At WrestleMania XXIV, Shawn Michaels defeated Ric Flair in a highly acclaimed match, while the Money in the Bank ladder match included seven participants from all three brands which were won by CM Punk who also win it again at WrestleMania 25. The ECW Championship was defended for the only time at a WrestleMania event, when Kane emerged as the new ECW Champion in a record 8 seconds, while Randy Orton retained the WWE Championship and The Undertaker won the World Heavyweight Championship for the second consecutive year, defeating Edge. In an encounter that featured major media coverage, boxing world champion Floyd Mayweather, Jr. defeated Big Show.