Tumble lineup: Blue Peter's Peter Duncan replaces injured Mr Motivator
Blue Peter's Peter Duncan has replaced Mr Motivator on the BBC Tumble line up.
Tumble lineup: Blue Peter's Peter Duncan replaces injured Mr Motivator Mr Motivator news
Tumble lineup: Blue Peter's Peter Duncan replaces injured Mr Motivator 
Tumble celebrities: Mr Motivator forced to quit over injured knee
Mr Motivator has been forced to pull out of BBC One's new gymnastics show Tumble before it's even begun.
Tumble: Celebrity line up confirmed: Sarah Harding, Lucy Mecklenburgh, Ian Watkins, more
The Celebrity line up of contestants on BBC One's new gymnastics show Tumble has been revealed today.