Jac Caglianone rounded first base for the first time on Thursday, his Kansas City Royals jersey rustling in the wind at Busch Stadium. And he kept going. A loud ovation followed as he stopped at second base with a smile on his face.

Kansas City Royals outfielder Jac Caglianone has caused a ton of excitement in Major League Baseball this week.

The Kansas City Royals have promoted top prospect Jac Caglianone to the majors, the team announced Monday. Caglianone, the No. 6 pick in last summer's draft, could make his big-league debut as soon as Tuesday, when the Royals host the St. Louis Cardinals.