Talismanic India batter Virat Kohli has admitted he hasn't been disciplined enough in his last few innings of the ongoing Border-Gavaskar Trophy series. After scoring an unbeaten century at Perth, Kohli has since made 7, 11 and 3 in this series currently locked at 1-1. “If you would have told us we're going to be one all heading into Boxing Day Test, we would have taken it with both hands. I agree, last two or three innings hasn't gone the way I wanted to. As I said, I haven't been disciplined enough to stick in there and, really grind it out. That's what the challenge that Test Cricket brings,” said Kohli to former India head coach Ravi Shastri ahead of day one's play in the Boxing Day Test.