4. Mustafizur Rahman
At his best, Bangladesh’s Mustafizur Rahman can be another brilliant replacement for Steyn in the left-arm variety. Rahman hasn’t been around for the last couple of seasons due to workload issues and injury concerns. If available, however, Rahman can be a dependable option for RCB on the bowling front.
The 25-year-old has played 24 IPL games in his career with 24 wickets while bowling with an economy of 7.51. He was integral to Sunrisers Hyderabad (SRH) lifting their only IPL trophy back in 2016. Rahman has shown the tendency to soak in the pressure well and perform at crucial stages in T20 cricket. He can surely replace Dale Steyn in RCB in IPL 2021.