Kirstie Alley's routine on Monday's episode of Dancing With the Stars began with a thud.
The pair quickly recovered, finishing out Alley's tribute to her mother, who died after being hit by a drunk driver in the early '80s.
"Dancing is a bit like life. It's about overcoming adversities," Len Goodman, 66, told them. "You overcame it. You got up. . . and you came back stronger."
Still, Chmerkovskiy -- who blamed his injury on "muscle strains" -- looked visibly upset knowing that his slip-up could potentially cost Alley her spot on next week's show.
"It happens," he told host Brooke Burke, 39. "It has nothing to do with her. I just want to apologize."
Alley didn't seem too fazed by her partner's accident. "We've done it a million times," she shrugged.
The duo fared slightly better than last week, earning a respectable 21 points for the night.
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