The rugby union player, 38, - who is partnered with Oti Mabuse - took to Instagram on Friday to reveal to fans that he had had a procedure and was recovering.
Fans took to Twitter after the comedian, 49, announced his decision on Wednesday night, admitting he had bitten off more than he could chew , having an ongoing heart condition.
Strictly Come Dancing s Dianne Buswell cut a glum figure in West Sussex on Thursday, hours after her celebrity partner Robert Webb quit the show due to ill health.
The comedian said he believed he was fit enough after recovering from open heart surgery two years ago but after suffering ill health, his heart specialist said he should withdraw from the show.