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" Biggest Loser returns for its twelfth season on Tuesday when new trainers Anna Kournikova and Dolvett Quince join the returning Bob Harper at the ranch as they try to help a new batch of contestants lose weight and transform their lives.  These new clips released by NBC show former tennis star and certified trainer Kournikova and fitness expert Quince coming face-to-face with the contestants for the first time, and offer a glimpse at what we can expect from them in the gym.   Biggest Loser&amp;#039;s premiere opens with the contestants being dropped off in the middle of the desert where they learn that this season&amp;#039;s theme is &amp;#039;Battle of the Ages&amp;#039; and meet Kournikova, Quince and Harper. Watch Anna and Dolvett meeting the contestants (US only):   Watch Bob meeting the contestants (US only):  Another preview video shows Kournikova and Quince working out their contestants at the gym for the first time.  Vinny Hickerson says of Dolvett: &amp;quot;He all of a sudden goes into training mode and it&amp;#039;s completely different! It&amp;#039;s like he&amp;#039;s The Incredible Hulk! He goes from Mr Cool to being in your face!&amp;quot; Meanwhile, fellow contestant Debbie Lounds says of Kournikova: &amp;quot;This is only the first day and this is what she is doing to us? I&amp;#039;m thinking that girl looks like such an angel, so nice and sweet, and here she just turns into a bear!&amp;quot; Watch Anna and Dolvett in action at the gym (US only):   Biggest Loser&amp;#039;s new season will see three teams of five players divided by age groups, with one group under the age of 30, another ranging from ages 30-49 and the final group over 50 years old. Players will choose between Dolvett Quince, Bob Harper or Anna Kournikova as their trainer based upon the order in which they finish the first task.  Biggest Loser premieres Tuesday, September 20 at 8/7c on NBC &amp;amp;gt; Anna Kournikova: &amp;#039;Biggest Loser&amp;#039;s new season will be interesting&amp;#039;&amp;amp;gt; Biggest Loser&amp;#039;s Dolvett Quince: &amp;#039;I&amp;#039;ll be intense but fair&amp;#039; "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/the-biggest-loser/news/a340622/biggest-loser-previews-anna-kournikova-and-dolvett-quince-arrive-work-out-the-contestants-video/>