Last month, knee problems forced Stiefel to drop out of a scheduled performance with Benjamin Millepied & Company, the company led by the New York City Ballet principal dancer, at New York's Joyce Theater.
He also recently resigned his post as artistic director of California's Ballet Pacifica, but officials of that company told reporters that the resignation was unrelated to his injuries.
ABT's spring season runs May 22-July 15, and will feature the company premieres of James Kudelka's Cinderella and John Cranko's Jeu de cartes.