Let the rivalries begin! The Black Team and Red Team have wasted little time getting competitive with each other on The Biggest Loser season 17, as seen in Us Weekly's exclusive sneak peek at the Monday, January 11, episode.

In the clip, the members of Dolvett Quince's Red Team are quite vocal and shout encouragement to one another while working out, which appears to bother at least one person on the opposing squad.

"You can pretend all you want to, but the real deal's on the other side of the gym," says the Black Team's Colby.

To find out what else the Red Team was saying that bothered the Black Team, watch the clip above.

The Biggest Loser airs on NBC Mondays at 9 p.m. EST.

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