The West Indian batsman had problems with his back during World Cup 2015 too where he played the quarter-final against New Zealand after taking an injection.

"So I need some time for recovery. Maybe December, before I actually get back in cricket as well. You have got to wish me luck with that surgery and then I will be back strong,"
Gayle had problems with his back during this year's World Cup too and had to sit out of the West Indies' tie against the United Arab Emirates (UAE). He played the quarter-final against New Zealand after taking an injection.
But the Jamaican has been prolific for his franchises in the shortest format of the game, T2Os, amassing 491 runs from 14 Indian Premier League (IPL) games and is the leading run-scorer in the CPL, with 430 runs at an average of 61.42.
Source-IANS