Tune in to Good Morning America on Monday (or set your DVR) to see U.S. senior trampoline national team member Steven Gluckstein of Atlantic Highlands, N.J., and his coach Tatiana Kovaleva from Head over Heels in a fun segment that will include trampoline. It’s part of the training for Friday’s “Battle of the GMA Anchors” with Diane Sawyer, Robin Roberts, Chris Cuomo and Sam Champion. The story shows Gluckstein and Kovaleva interacting with the morning show’s anchors, as well as some trampoline fun.