Cheryl Burke Performs on Dancing with the Stars After Suffering Head Injury in Rehearsal
The dance pro, 36, lost her footing during a rehearsal on Sunday, causing her to fall and slam her head against the ballroom floor.
"Cheryl and I were practicing during stage rehearsal and it did not go well," McLean, 42, said in a video that aired on Monday night. "It happened so fast, I just heard her head hit the floor."
In the video, McLean can be seen quickly noticing the severity of Burke's fall situation and crawls over to her, asking, "Are you okay?"
Before McLean and Burke took the stage, host Tyra Banks offered an update on the dancer's health. "Cheryl is okay and she is cleared to perform," Banks, 46, said.
The Backstreet Boys member went on to perform the tango with Burke to the Psycho theme song. McLean dressed in a costume inspired by Norman Bates as part of Monday's Villians Night theme.
Afterward, judge Carrie Ann Inaba asked Burke if she was okay, and Burke confirmed that she was.
"I'm actually doing okay," Burke told Banks. "You know, you go in and out a little bit. I think I hurt my rotator cuff actually more than my neck, but I'm hard-headed, thank god, so we're good, we're good."
RELATED VIDEO: How Backstreets Boys’ AJ McClean Kept Drugs a Secret from His Bandmates and Family for 18 Months
When asked how he felt about the accident, McLean told Banks he "was completely mortified."
"That's why I went down," he continued. "I was there with her every second, like, 'Oh my god! Are you okay? Are you okay?' She's family now. I've got to protect her like she does for me."
Burke's injury comes one week after she and McLean landed at the top of the leaderboard with a 27 out of 30 for their samba to "Mi Gente" by J Balvin and William William. The performance earned them their first set of straight 9s and a spot in season 29's Top 10.
Dancing with the Stars airs Mondays (8 p.m. ET) on ABC.
Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.