Complex sentence: In 1987, Thomas was injured with Achilles tendinitis in both ankles and struggled at the U.S. Nationals, placing second to Jill Trenary, but rebounded at the World Championships, finishing a close second to East German skater Katarina Witt.
Split into simpler sentences: In 1987, Thomas was injured with Achilles tendinitis in both ankles and struggled at the U.S. Nationals, placing second to Jill Trenary. She rebounded at the World Championships, finishing a close second to East German skater Katarina Witt.