It happened so fast, I just heard her head hit the floor."
A medic was called and examined Burke on scene,Peopleconfirmed.
Burke was advised to take the rest of the day off.

Cheryl Burke.Credit: Laretta Houston/ABC
“Yesterday, I took a hard fall while rehearsing for #VillainsNight.
“It’s one of those things that can happen in a split second.
… Keeping our fingers crossed for only planned mishaps during the show tonight!!
“Sorry everyone tonight on @DancingABC I was absent from our spots after our dance.
I pulled my neck and had to run to therapy,” MurgatroydtweetedOct.
“Thanks for the concern,” she added.
“Love you all and I’m looking forward to next week xxxx.”
Dancing With the Starsairs Mondays at 8 p.m.