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The Ultimate Fighter enters its twentieth season with a new weight class and a world championship on the line.

Under the guidance of star coaches Anthony Pettis and Gilbert Melendez, sixteen of the top 115lbs female fighters on the planet will live together, train together and compete for the right to be crowned the first ever UFC Women's Strawweight Champion.

Every week, Scotland's Joanne Calderwood gives her behind-the-scenes take on The Ultimate Fighter experience.

"On The Ultimate Fighter, I saw Angela Magana and Bec Rawlings' true colours within a week and now they're just starting to show it on the show. They're just not nice people.

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There was no reason for them to go on like that about Tecia Torres and Heather Clark. Yes, Tecia got a second chance but, if any of them been eliminated and had the option to come back in, they would have taken it. The whole bedroom thing was just silly, it was like playground rules. It was like pre-school. It just shows how immature they are.

Bec and Angela have obviously both been through a lot in their lives but you would think they would treat people better because of that.

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Bec's main focus should have been her fight. We all knew we were coming to stay with each other so who cares if you're sitting next to your opponent? That's The Ultimate Fighter! She made such a big deal about the bed situation which kind of showed she wasn't there for the series' main reason, which was to win the belt.

Being in the house with Bec and Angela, I saw them being quite nasty to people's faces too so it wasn't just behind people's backs. That's what people who are insecure about themselves are like; they'll obviously think someone's saying something bad about them or they'll always think the worst.

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They are definitely insecure in that way. I'm so glad that the show has started showing their true colours.

Tecia was probably the only girl from Invicta I really knew. I didn't go out of my way to tweet her or text her or that kind of friendship but I would always speak to her backstage.

Tecia's always been very nice to me. I like her as a fighter and outside of the cage too. She stood up for herself and said, 'No, I'm not moving bedrooms' which is what I would have done. I really respected that.

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When Tecia got moved to our team, although I could see both points of view, I was always thinking she was a high level girl that I got to train with. I took it for what it was. She's like me; she's serious about this sport, so I would give her my time.

I thought Bec never really did anything in the fight with Tecia. I was laughing at one point because she seemed to pull Tecia's hair to make it look like a pineapple like hers.

Tecia never seemed to be in any trouble at all and Bec just showed that she should have been focusing on her opponent instead of worrying about her changing bedrooms.

I was impressed with Tecia's performance. She did well to deal with Bec and get the win. There was a lot of pressure on her with coming back into the competition.

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I was quite vocal in the episode about some of the booing from Team Melendez after Tecia's win. There was no need for it. I was really shocked. You don't want anything bad to happen in your sport and for fighters to be the ones that are doing that, it was just completely shocking behaviour. I was really disappointed and that's when they all really lost my respect.

They didn't show the half of my staredown with Rose Namajunas. We were actually there for about 10 minutes! Me and her were just looking at each other and didn't want to be the one to look away.

That's just the way I do a staredown, I just look into them. You kind of get lost in the moment. It's like the first part of the fight, in a way.

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Other than my own quarter-final fight, I was most looking forward to Randa Markos vs. Felice Herrig. I think in the next episode you'll see Carla Esparza and Felice's true colours coming out also. I had every faith in Randa that she was going to beat Felice and I was really looking forward to seeing it."

The Ultimate Fighter: A Champion Will Be Crowned airs every Wednesday night at 3am on BT Sport 1 and repeated at 10pm on Thursdays on BT Sport 2