It's actually 7/2 (3 and half to 1) in the article not 4/1 (sorry to be so anal).

Kovalev is seriously being overlooked here, little Canelo has to get to his body first. Kovalev doesn't just have big power but a great jab and skill. His revenge over Alvarez was superb. He's folded twice against an all-time great and a world-class 175-er, in neither did he have such physical advantages.

Having said that I fancy Canelo to win, he's in his absolute pomp and looking better and better with each fight.