5 Current WWE Superstars who have had real-life heat with former wrestlers 

#1 Brock Lesnar and Chris Jericho

Brock Lesnar

It's not exactly a secret that Brock Lesnar doesn't like to be around people much. He is said to be a person who likes to keep to himself and his initial WWE exit was due to the fact that he wasn't able to cope with WWE's tough travel schedule. Lesnar's second run saw him be involved in a few backstage controversies. At Extreme Rules 2012, Lesnar threw a backstage tantrum over John Cena breaking the script and not "selling" his attack on him.

Around 4 years later, Lesnar had a backstage confrontation with Chris Jericho at SummerSlam 2016. Jericho was upset at what happened during Lesnar's match with Randy Orton. Lesnar was enraged at Jericho's reaction, and told him that it was none of his business. Jericho was ready to do the unthinkable if Lesnar tried to get physical with him:

"I remember I was face-to-face with him and I just remember looking at him [and thinking], ‘He’s got the biggest, ugliest nose’. Like this f*cking giant nose, and I’m like, if he does anything, I’m just gonna bite his nose off."

Jericho also sarcastically took a shot at Brock Lesnar and WWE, after The Beast won the men's Money in the Bank ladder match in 2019.

Awesome to see @BrockLesnar win the #MoneyInTheBank match...even though he wasn’t officially entered! Brock is the future of the biz and this perfect example of genius booking shows why @WWE will remain on top FOREVER! #GoBrockGo

— Chris Jericho (@IAmJericho) May 20, 2019

Jericho made this comment after he left WWE in 2019, and signed a contract with All Elite Wrestling. He is the biggest star in the company today, while Lesnar is still with WWE and makes limited appearances in WWE.