Five-time "Dancing with the Stars" champion Derek Hough was briefly hospitalized after injuring himself during a show rehearsal Monday, and will miss Wednesday afternoon's performance of Radio City Music Hall's "New York Spring Spectacular."

"We don't have full details yet on the extent of his injury," a Radio City spokesman told Newsday. "We can only confirm that Taylor Frey will be performing the role of Jack in the 2 p.m. show." Frey -- whose credits include a recurring role on the soap opera "Days of Our Lives" and parts in the Broadway musicals "How to Succeed in Business Without Really Trying" and "Finian's Rainbow" -- will play Jack, an angel out to save an old New York City tour guide's job.

A person who answered the phone Tuesday at the box office said she had no information as to whether Hough would return for subsequent shows. "New York Spring Spectacular" runs through May 7.

UpdateInjured Derek Hough out of Radio City show

Whether or how soon Hough, who turns 30 next month, would return to "DWTS" also was uncertain Tuesday. "We can confirm he was injured rehearsing for the 'DWTS' 10th Anniversary special," an ABC spokesman told Newsday, referring additional questions to Hough's representative, who did not respond.

Hough performed on Monday night's show, but ABC yesterday did not list him in a news release among the participants of the "Dancing With The Stars: 10th Anniversary Special" airing Tuesday.

Hough's friend Mark Ballas, a fellow "DWTS" dancer paired this season with actress Willow Shields, posted and then removed an Instagram image of himself pushing Hough in a wheelchair.

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TV personality Maria Menounos, who was partnered with Hough on "DWTS" season 14 and was at the rehearsal for the anniversary special, told E! News that Hough had smashed his foot on a piece of equipment and, when attempting to ice it, fell down some stairs, hurting his ankle.

Hough, who is partnered with Olympic gymnast Nastia Liukin this 20th season, also posted and then deleted an image of himself in the emergency room. It showed most of his left foot wrapped and held by splints, and his right foot encased in a therapeutic boot. "Just getting home from the hospital," he posted. "Not the best of news. I'm in utter disbelief."