During the September 1, 2007 (aired September 4) ECW taping, Punk was able to defeat Morrison in a "last chance" title match to win the ECW Championship. Punk successfully defended his championship against Elijah Burke at Unforgiven, Big Daddy V via disqualification at No Mercy, The Miz at Cyber Sunday, John Morrison on the November 6, 2007 episode of "ECW", and in a triple threat match against The Miz and John Morrison at Survivor Series. On the January 22, 2008 episode of ECW, Punk was defeated by Chavo Guerrero for the ECW Championship in a No Disqualification match after Edge ran in and speared Punk. At WrestleMania XXIV, he competed in the Money in the Bank ladder match and defeated Chris Jericho, Montel Vontavious Porter, Shelton Benjamin, John Morrison, Mr. Kennedy and Carlito.