Have a look at this video. Bias in boxing commentary is common, this one is an example of the bias commentary favouring GGG vs Canelo in HBO boxing. Normally this can happen when they have an agenda to make one fighter look better than another. This way they can sway the opinion of the people watching the fight.
In this video when GGG throws punches and lands, they make it seem like he is landing huge punches (even if it is not a huge punch). When Canelo punches back, they make it seem like its not much or even worse, not even talk about it. This way the people watching gets influenced and assume that GGG is doing a lot of effective work and Canelo is not doing much.
