UFC middleweight champion Luke Rockhold is never one to hold his tongue when it comes to his thoughts on other fighters.

Recently, Rockhold and former UFC middleweight champion Chris Weidman have been trading verbal blows ahead of their UFC 199 rematch for the middleweight championship.

Ahead of that fight, Rockhold has put former #1 contender Yoel Romero, who is currently suspended for a drug testing failure, on blast!

When it was announced that Romero failed a drug test, Rockhold Tweeted:

I'm sick of all these cheaters. It's pathetic, man up or get the fuck out.

— Luke Rockhold (@LukeRockhold) January 13, 2016

Recently, Rockhold spoke at UFC 199 media day, which was transcribed by MMAFighting:

“People somehow keep slipping through the cracks,” Rockhold said at a UFC 199 media day on Wednesday. “No matter what happened.”

“It doesn’t matter to me,” Rockhold said. “I’d like to see a clean sport. I’ll see how it all plays it. Its funny how that happens. A contaminated supplement is a contaminated supplement, but you’re responsible for what you put into your body.”

Romero is coming off a controversial split decision win over Jacare Souza back at UFC 194. With the win, Romero was named the middleweight #1 contender, but was then suspended for 6 months for a drug testing failure.