"You'll never see that again, trust me," he told reporters.
"I was playing a football game," Michael said. "That's his opinion. If that's his opinion, that's what he want to say -- you gotta say it in the right way. Through the right outlets."
Michael said he engaged in a "serious heart-to-heart conversation" with his brother and emphasized Marcus isn't his mouthpiece.
"I'm in the middle of a full-fledged football game," he said. "I'm out there battling. I don't know what's going on, what's being said. But I definitely got that corrected."
Marcus apologized Tuesday for his actions.
"I love my brother and it's hard as hell to watch him taking all those shots," he tweeted, "but I'm sorry if I offended anyone and definitely didn't mean to put Mike in a tough spot. I'm not only watching as a fan, I'm watching as his blood."
Older brother has requested that younger brother be more careful with social media. For that, we all can be thankful.
Follow Marc Sessler on Twitter @MarcSesslerNFL.