Abhishek's 30-ball ton hid the number that should really worry T20 bowlers

The 30-ball ton was, oddly, the least surprising part of what Abhishek Sharma did at the Arun Jaitley Stadium. It isn't even his fastest hundred. What's odd about the innings is what it says about the number sitting next to that extraordinary strike rate: his average.Somewhere in Abhishek Sharma's memory, though, there's a faster century still. It came two years ago, for Punjab against Meghalaya in a Syed Mushtaq Ali Trophy fixture nobody outside domestic cricket was watching: 28 balls, no fanfare.So when he reached three figures in 30 deliveries against Afghanistan in New Delhi, becoming the fastest T20I centurion ever produced by a Full Member nation and only the third-fastest in the format's history overall, it wasn't a discovery. It was a confirmation, delivered on a bigger stage, of something the data had already been saying for a while.The ground has some history with him already.