#4 Braun Strowman
The incident with Brock Lesnar wasn’t the same as the rest of the ones on this list – it wasn’t scripted and was Brock legit losing his cool with Strowman.
It took place at the Royal Rumble during the triple threat match with Lesnar defending his title against Kane and Braun Strowman. During an exchange with Brock Lesnar, Strowman was a little careless and caught Brock in the face with an errant knee.
Lesnar was not happy and immediately caught Strowman with a legit right-handed strike to the side of the head. You can visibly see Strowman stagger after taking the shot. It’s easily one of the most unprofessional moments of Lesnar’s career and he could have legitimately knocked Strowman out during a title match on PPV. It’s unclear if Lesnar was ever punished for this incident. Strowman, thankfully, managed to finish the match without issue.