Steve Granitz / WireImage 1 / 18
Steve Granitz / WireImage 1 / 18

Alec Baldwin's pregnant wife is facing a lawsuit from a man who alleges he was injured during her yoga class.

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Spencer Wolff claims he suffered "serious" injuries and "emotional upset" during the January session at Yoga Vida in New York City held by Hilaria Thomas, who is due to give birth to the "30 Rock" star's baby later this year.

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Wolff has filed papers in Manhattan Supreme Court and blames the "overcrowded" class and Thomas' "negligence" as two causes of his alleged accident, according to the New York Daily News. Thomas has been instructing yoga since 2005.

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