was released from WWE and Mercury became injured, and Punk defeated Gallows in a singles match on the September 24 SmackDown. The New Nexus (2010–2011) On October 11, Punk was traded back to the Raw brand after being swapped with Edge and took part in the interbrand tag team match on October 24 at Bragging Rights after defeating Evan Bourne to win a place, but Team Raw lost as Punk was eliminated by Rey Mysterio. It was reported later that Punk was suffering with a hip injury that would stop him from competing. To keep a presence on television, he began commentating on Raw from November 22. At the end of December, Punk left the commentary team after assaulting John Cena on Raw and SmackDown with a chair. Punk later revealed that his motives for the attacks were that he had joined and assumed control of The Nexus. Punk then made each member of the group prove themselves worthy of a spot, with some instead choosing to join The Corre, which had been started by former Nexus leader Wade Barrett on SmackDown. In January 2011, Punk and The Nexus cost Orton his match with The Miz for the WWE Championship at the Royal Rumble as a revenge for Orton prematurely ending Punk's first World Heavyweight Championship reign in 2008. In turn, Orton responded by taking out all of the New Nexus members by punting them in the head, leaving Punk alone as the sole surviving member of the group. This led to a match at WrestleMania XXVII on April 3 and a Last Man Standing match on May 1 at Extreme Rules, both of which Punk lost. WWE Champion (2011–2013) In June 2011, after pinning WWE Champion John Cena on the June 13 episode of Raw, Rey Mysterio at Capitol Punishment, and finally Alberto Del Rio in a number one contender's triple threat match (which also included Mysterio) all within one week, Punk revealed that his contract was to expire on July 17 at Money in the Bank and vowed to leave the company with the WWE Championship. After making a scathing yet highly acclaimed on-air speech, often referred to as the Pipe Bomb, concerning the way in which WWE is run and its owner Vince McMahon, Punk was given a storyline suspension from televised WWE events. Punk would be reinstated on Cena's insistence. Upon his return, Punk ceased to