How did World no1 Test bowler Rabada rule out of the IPL?

The Indian Premier League 2018 is going to start from tomorrow and it is a sad news for Delhi Daredevils' fans that the World No.1 Test bowler Kagiso Rabada has been ruled out from their squad due to a lower back injury.

Rabada was going to play for the Delhi Daredevils in this year’s IPL Twenty20 competition, but he is now out of the league and has been undergoing a treatment due to a lower back stress reaction which will rule him out of cricket action for up to three months.

Rabada was the leading wicket-taker during the recent South Africa and Australia series and he played an important role in South Africa's 3-1 win over Australia. After big guns like Australians Steve Smith and David Warner who were barred due to ball-tampering scandal, he is the latest big name to drop out of the IPL this year.