That means Watson won't be offering to back off and give anyone else a go when Australia's Super Eights campaign continues against South Africa on Sunday and Pakistan on Tuesday.
The top two teams in each group progress to the semi-finals, and the Proteas are under pressure after losing from a position of power - some would say choking - against Pakistan in the early game on Friday.
Watson clubbed seven sixes against India, equalling David Warner's record.
Watson was asked afterwards whether he had been pumping iron, when in fact he has tried to stay out of the gym to avoid more injuries.
