YouTube slugger Jake Paul and former world champ Julio Cesar Chavez Jr clash in a cruiserweight bout in the US.

Seven months after his blockbuster fight against 58-year-old former heavyweight champion Mike Tyson, YouTube celebrity boxer Jake Paul will return to the ring to face off against another former world champ, Julio Cesar Chavez Jr.

Chavez Jr, 39, is a former World Boxing Council (WBC) middleweight champion who hasn’t held a major boxing title in 13 years and has fought just once in the last three and a half years. He’s also had some well-documented personal problems over the last few years.

Here’s everything you need to know about the Paul-Chavez bout:

The fight night is on Saturday, June 28, with six undercard bouts before the main fight.