October 7, 2015 11:28 AM EDT

Ronda Rousey thinks she could be in for a long fight with Holly Holm. At least that’s what she told Jimmy Fallon about her upcoming UFC 193 headliner with the former world boxing champion.

But Rousey still very much expects to win. The UFC women’s bantamweight champion is currently a 15-1 favorite heading into the showdown, according to MMA Junkie.

“She’s a nice chick,” Rousey said about Holm on Tuesday’s episode of The Tonight Show. “I don’t have anything against her. She’s a nice chick who’s going to lose.”

Rousey also took the time to show Fallon how to put a game face on. When the host asked her about how she looks at an opponent, she spoke about how she learned to make the intimidating expression she uses in the ring.

“When I was a little kid, my godfather was trying to give me tips on how to have a game face,” Rousey explained. “You have to look at them through your eyebrows. You put your head down and you look up through your eyebrows at them and you look as mean as you can.”

Fallon’s game face somehow just isn’t as scary as the seven-time defending UFC champion’s.

Write to Megan McCluskey at megan.mccluskey@time.com.

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