Mumbai teenager Yashasvi Jaiswal on Wednesday smashed his way into the record books by becoming the youngest player to score a List-A double century. Playing in his debut Vijay Hazare season, the 17-year-old scored 203 off 154 balls, which included 12 sixes and 17 fours against a Jharkhand attack that included out-of-favour India pacer Varun Aaron and Shahbaz Nadeem.