Can someone explain how this is a “cheap shot”?

I’m watching ESPN and they are showing the fight. I believe Eduardo Perez said, the Blue Jays feel that Odor’s punch was a “cheap shot”. I’m sorry, WTF, Odor’s right cross was anything but “cheap”. Is any punch that connects, “cheap”.
Addendum: May 16th, 2016.
Now I’ve heard everything. Christopher Russo of MLB Network has been screaming that Rougy’s bomb on Bautista was a “sucker punch”. What universe is he living in? He then proceeds to say that Odor was running away after the punch. Are we watching the same video? Actually, I saw it live as well. Bautista has to be given credit for not being KO’d but Rougy wasn’t running away from anything. In fact, it looks like he was moving forward, going in for the finish, when Beltre broke it up. Also, it looks like Rougy was throwing rights at Pillar as well. I thought these hosts were supposed to be “unbiased”, like the news. 🙂