Former Australia all-rounder Shane Watson opened up on the difficulties he had with decision reviews during his career.
Watson, 35, was often criticised for his constant reviews of dismissals, particularly after being given out lbw.
Now with Islamabad United in the Pakistan Super League (PSL), Watson gave an insight into the struggles he had with reviews.
"Growing up, the umpire's decision is always final so you don't have to worry about whether you're out or not," he said, answering fans' questions on the team's Facebook page.
"I made a number of bad reviews, which in the end I just gave up on and realised the same thing as always - if the umpire gives you out, you're out.
"As soon as the reviews come in, then you have to change your whole understanding of exactly whether it's out and the rules that go with the umpire's call.
"It took me a while to realise I hadn't worked that out at all."
Watson played 59 Tests, 190 one-day internationals and 58 Twenty20s for Australia, twice winning the Allan Border Medal.