At Royal Rumble 2014, fans in the arena heavily showered Rey Mysterio with boos. While that confused many at the beginning, it became evident shortly thereafter that people were upset that Mysterio had the final spot in the match instead of Daniel Bryan.
Batista won Royal Rumble 2014 by eliminating Roman Reigns in the end. Other contestants during the match were Alberto Del Rio, Alexander Rusev, Antonio Cesaro, Big E Langston, CM Punk, Cody Rhodes, Damien Sandow, Dean Ambrose, Dolph Ziggler, El Torito, Erick Rowan, Fandango, Goldust, Great Khali, Jack Swagger, JBL, Jey Uso, Jimmy Uso, Kane, Kevin Nash, Kofi Kingston, Luke Harper, R Truth, Rey Mysterio, Ryback, Seth Rollins, Sheamus and the Miz.
Since WWE officials do not have a story line for Rey Mysterio, they have decided to throw him together with Big Show into a tag team. The two of them are expected to work together until at least the Royal Rumble.
John Cena wins Royal Rumble 2013 by last eliminating Ryback. Other contestants in the match include Antonio Cesaro, Bo Dallas, Brodus Clay, Chris Jericho, Cody Rhodes, Damien Sandow, Daniel Bryan, Darren Young, David Otunga, Dolph Ziggler, Drew McIntyre, Godfather, Goldust, Great Khali, Heath Slater, Jinder Mahal, Kane, Kofi Kingston, Randy Orton, Rey Mysterio, Ryback, Santino Marella, Sheamus, Sin Cara, Tensai, The Miz, Titus ONeil, Wade Barrett and Zack Ryder.
Alberto Del Rio won Royal Rumble 2011 by last eliminating Santino Marella. Other participants in the match include Alex Riley, Big Show, Booker T, Bray Wyatt, Chavo Guerrero, Chris Masters, CM Punk, Curtis Axel, Daniel Bryan, David Otunga, Dolph Ziggler, Drew McIntyre, Ezekiel Jackson, Great Khali, Heath Slater, Hornswoggle, Jack Swagger, John Cena, John Morrison, JTG, Justin Gabriel, Kane, Kevin Nash, Kofi Kingston, Mark Henry, Mason Ryan, R Truth, Randy Orton, Rey Mysterio, Sheamus, Ted DiBiase, Tyler Reks, Tyson Kidd, Vladimiz Kozlov, Wade Barrett, William Regal, Yoshi Tatsu and Zack Ryder.
While we still do not have a definite answer as to how long he has been upset with the company, we do know now that CM Punk was already contemplating a departure from WWE as early as Royal Rumble 2014. He vented to Mick Foley at the time about not being happy within the company and having trouble dealing with injuries.