After wowing the audience last week with his Cha-Cha, 'Dancing With The Stars' contestant Chaz Bono stumbled on a challenging quickstep.
Apparently problems began in rehearsals when Chaz's joints began to ache, causing him to almost bow out of this week's performance with partner Lacey Schwimmer.
With his knees swollen and wrapped in bandages, he worried as he practiced: "I am afraid I will literally pass out or blow my knees out."
Judge Carrie Ann Inaba said: "'I could see you in pain. You're charm can only take you so far but it doesn't cover that fact that you didn't dance quickly and this is a quickstep."
One of Chaz's competitiors, Kim Kardashian's brother Rob, improved from last week. With his mother Kris and step-father Bruce Jenner cheering him on from the crowd, he scored 21 points.
"Rob you started to blossom, you started to find your own voice. Your steps were perfect," said Bruno.
Carrie Ann added: "It's official Rob Kardashian is a better dancer than Kim Kardashian. You have the dancing gene!"
Nancy Grace gave a stand-out performance, but it didn't have much to do with her dancing ability, but rather her nipple as she fell out of her brown outfit.
She managed to save herself from total embarrassment by quickly adjusting herself.
"On the European version that would be perfectly fine," host Tom Bergeron joked.