The initial months for CM Punk with WWE were plagued by heat from a few key members of the WWE power bloc - but he now has heat with most of the locker room, the Wrestling Observer Newsletter reports.

Management has received multiple complaints from wrestlers who claimed that Punk carries a "main-event" attitude backstage despite being relatively new.

Sources say that Punk doesn't say or do anything inherently disrespectful, but his sarcastic attitude is not well-received by a WWE locker room that doesn't believe he's earned the right to possess such an attitude.

Also, ending his relationship with Maria didn't help Punk's standing in the locker room.