Biggest Loser trainer Bob Harper worked with Jillian Michaels for almost 10 years on the show. Now, as the 16th season gets ready to premiere on Sept. 11, Bob shares how it feels to have Jillian gone.

“I’ve worked with Jillian since the very beginning,” Bob says in the new issue of Closer, from The Biggest Loser ranch. And even though trainer Dolvett Quince has only been on the show since 2011, he reveals to the mag that it already feels “very different” without her.

Still, Bob is excited about new trainers Jessie Pavelka and Jennifer Widerstrom. “There are going to be new and creative things coming in,” Bob tells Closer of the new season. “We’ve just got to keep things fresh.”

For more from Bob and what viewers can expect this season, pick up the new issue of Closer, on newsstands now!