The Jac Caglianone era is underway for the Royals. Tuesday evening, Kansas City's No. 1 prospect made his big-league debut against the St. Louis Cardinals at Busch Stadium after only 79 minor-league games.

Royals top prospect Jac Caglianone went 0-for-5 in his major league debut on Tuesday night, but his presence was enough to help Kansas City overcome a five-run deficit to beat the Cardinals 10-7.

The Royals battered the Cardinals in the fifth inning. Nick Loftin kicked off a six-run frame with a solo home run to left field. It was his seco