South Africa and Delhi Capitals’ fast bowler Kagiso Rabada has told BBC Stumped that ‘bio-bubbles aren’t sustainable’ in world cricket and something must change. Rabada, who made his IPL debut four years ago as a 22-year-old, has risen to become one of the most successful bowlers in world cricket and a role model for young South Africans. He joined Alison Mitchell, Sunil Gupta and Jim Maxwell to discuss his development as a player, what it’s like to be coached by Ricky Pointing and his hopes of lifting the Indian Premier League trophy with Delhi Capitals, after losing last year’s Final. Also on Stumped, we discuss another week of speculation around the future of the Ashes, what will happen next and we hear from West Indies legend Michael Holding who claims England showed "Western arrogance" by cancelling their tour of Pakistan. Photo credit: Kagiso Rabada of South Africa walks off for lunch after he took the wicket of Jonny Bairstow of England during day three of the 4th Test at Supersport Park on January 24, 2016 in Centurion, South Africa. (Photo by Julian Finney/Getty Images)