Even as he picked up another win in the boxing ring, YouTube star Jake Paul is aware that there are those who doubt his victory over former UFC fighter Ben Askren. Paul recorded his fastest win as a boxer, knocking out the mixed martial artist with a right hook in the first round on Saturday in a Triller Fight Club event.

So hours after his victory, he took to social media to call out some notable people in both mixed martial arts and boxing while also sending a message to his haters who questioned if his victory over Askren was a legitimate one.

The 24-year-old was the aggressor in the fight against Askren, who is known more as a wrestler than a striker during his days as an MMA fighter, where he compiled a 19-2-1 record. After he was knocked out by Paul, Askren tried to get up, but referee Brian Stutts decided to end the fight, giving Jake Paul his third victory as a professional boxer. As it happens, one of the people he called out happens to be a popular boxing trainer in Freddie Roach.

Roach is known as being the longtime boxing coach of eight-division world champion Manny Pacquiao, as well as four-division champion Miguel Cotto, and Julio Cesar Chavez Jr. Aside from the 61-year-old coach, Jake Paul also called out other figures in the UFC, including its president Dana White and welterweight fighter Nate Diaz.

While it is unclear who Jake Paul will fight next in the boxing ring, he is already looking for his next opponent by calling out some notable figures in both boxing and mixed martial arts. At the same time, he's firing shots at those who are still doubting his latest victory.

In any case, Paul's win over Askren means that we will see more of him inside the boxing ring in the future.