March 30 : Days after turning 15, Rajasthan Royals opener Vaibhav Sooryavanshi found a perfect way to celebrate, tearing to a 15-ball half-century in a commanding eight-wicket victory over Chennai Super Kings in the Indian Premier League on Monday. Sooryavanshi, who lit up his debut season with a 35-ball hundred against Gujarat Titans last year, took only 15 balls to smash his first fifty of the season - the third fifty-plus score of his eight-match IPL career so far. Alongside fellow opener