If Alex Pereira beats Magomed Ankalaev, he will be the 2nd Greatest Light Heavyweight Champion of all time

Title says it all. In my opinion, if Alex beats Magomed, he should be viewed as the 2nd greatest champion the Light Heavyweight division has seen. While Alex will probably not pass Daniel Cormier when it comes to the length of title reign, he will pass Cormier in the number of title defenses. Both of them currently have 3 title defenses. With a win over Magomed, Alex will be 3rd in Light Heavyweight title defenses behind Jon Jones (11) and Tito Ortz (5). He would be tied with Chuck Liddell (4).

TLDR: If Alex beats Magomed, he's the 2nd greatest Light Heavyweight behind Jon Jones.