Holland responded to Chimaev's proposal with two middle fingers

“I have no idea why he started talking about it at all. Maybe because I asked him how many times a week they work on wrestling. But I didn’t ask to join his team, but just wanted to steal a recipe for myself and my guys. I stay with my team, and I'm not going to train with others. My team, this is my team, so, no way in the world, thank you - catch two middle fingers!

Recall that Chimaev defeated Holland already in the first round, after which he offered to train together.