Nastia Liukin has revealed who she thinks her biggest competition is at this point in the season on ABC's Dancing With the Stars.

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Liukin has been through quite a lot this season, from going back and forth between New York and Los Angeles every week, having her partner Derek Hough be injured and more. However, she is one of the frontrunners to win this season of Dancing With the Stars.

The gymnast spoke with Access Hollywood Live this week about the difficulty of being in the competition and who she believes to be her greatest competitors at this point.

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"I was a gymnast for like 15 years of my life, I know what it is to train hard and so many hours, but I guess I was a little surprised at how hard this actually was," Liukin admitted. "Spending so much time rehearsing - and the steps too. Poor Derek, he cannot sit still, by the way, he's one to be so active so it's so hard to watch him be literally chained to a chair because he can't walk."

Hough was sidelined after suffering multiple injuries last Monday. The five-time pro champion has been coaching Liukin anyway while she rehearses with her new partner, Sasha Farber.

Right now, Liukin believes she has competition in two of the remaining celebs.

"Rumer [Willis] and Val [Chmerkovskiy] and also Riker [Lynch]," she said when asked about her competition. "I think he surprised everybody. As the competition has gone on, everybody has progressed. Everybody's getting more competitive now too. We only have a few more weeks left in the competition so it's getting fun."

It remains to be seen if Hough will get back to dancing with Liukin in time for the final weeks. For now, Liukin is continuing to dance with Farber.

Dancing With the Stars airs Mondays at 8 p.m. ET/PT on ABC.

Watch Liukin's interview here:

Tags: Dancing with the Stars Reality TV ABC