Derek Hough Has Severe Back Injury, May Not Perform on Dancing With the Stars

Credit: Joe Kohen/WireImage

Following a painful back injury, Dancing With the Stars dance pro Derek Hough may not be dancing in the Monday, Oct. 28 episode of the hit ABC competition show. A sources tells Us Weekly that the Emmy-winning dancer needs to get medical clearance before hitting the dance floor this week.
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His partner, Glee star Amber Riley, will dance with pro Henry Byalikov in tonight's episode if Hough is unable to lace up his shoes. "[Hough's] back is severely injured – he had a pre-existing injury," the source explains to Us. "He hurt his back dancing with Shawn Johnson [during Season 15 in late 2012], and he re-injured it dancing with Amber. He is determined to push through but not sure he'll be able to."
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Yesterday Hough posted a photo on Twitter of what appears to be a doctor giving him injections into his back.
"This is happening … Ouch!" the star captioned the photo.
On Oct. 28, Amber Riley tweeted, "Dress rehearsal with #TeamFoxingAwesome," but did not indicate whether Hough was dancing with her.
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Derek is the older brother of dancer-turned actress Julianne Hough, 25, who was a dance pro on DWTS for five seasons and recently returned to the show as a controversial guest judge. Derek has been a dance pro for 12 seasons on the hit show and recently won an Emmy for his choreography