Revel Horwood said the actor looked like he was recovering from hip surgery, while Anton Du Beke said it was uncomfortable to watch.
Find out the biggest news from the dancefloor and back stage this week.
The dancer had a temporary stint on the judging panel last year, but he'll be a full-time fixture in 2021.
Strictly Come Dancing judge Shirley Ballas has shut down rumours that Carrie Symonds will appear on this year's series.
Strictly Come Dancing star Anton du Beke has said he's grateful he was asked to be a judge as his ego was 'around my ankles after getting booted off first'
The 'Strictly' champion said not having a live audience supporting contestants meant they were at an added disadvantage.
Strictly Come Dancing star Anton Du Beke has told how his father beat him with a belt during his childhood and admits he 'didn't care' when he was told he was dead
Arlene Phillips has commented on rumours Strictly Come Dancing will include a same-sex pairing on the next series of the show.