WATCH: 'Try and be a little quicker please, KL': Umpire warns Rahul for late pullout against Rabada, batter says 'sorry'

On Day 1 of the 2nd Test in Johannesburg, KL Rahul received a warning from umpire Marais Erasmus, which was captured clearly by the stump microphone.

One of the perks of not having crowd at the venue during a cricket match is the stump microphone picking up even the smallest of conversations. In the first Test at Centurion, India captain Virat Kohli came up with a couple of gems during the course of the match, and on Day 1 of the 2nd Test in Johannesburg, it was KL Rahul, who received a warning from umpire Marais Erasmus which was captured clearly by the stump microphone.

KL Rahul pulled out at the last minute against Kagiso Rabada.  (Twitter screengrab)

During the fifth over of the Indian innings after Rahul won the toss and opted to bat, the stand-in skipper pulled out very late to a ball from Kagiso Rabada. Bowling the third ball, Rabada came steaming in but with Rahul pulling out, the South Africa pacer had to stop at the last moment. By the looks of it, Rahul was not ready to face as the batter kept tapping the bat looking at the ground. However, Rahul was quick to apologise but Erasmus felt a warning wouldn't do any harm.

"Just try and be a little quicker please KL," the stump mic caught Erasmus as saying, to which Rahul quickly said "Sorry".

Rahul is captaining India in Kohli's absence, who is missing the second Test of the series due to an upper back spasm. The opportunity means that Rahul is the first Indian captain since Mohammad Azharuddin in 1990 to lead the team in Test cricket before doing so in limited overs internationals.