How Colorado Rockies' rookies are faring and what it means for their futures

A troop of 10 Rockies' players woke up early on Saturday to march across the street in full uniform to buy the rest of the team coffee and donuts. It's a Wrigley Field tradition for rookies and early-career players making their first visit to Chicago.

Michael Toglia and Elehuris Montero are in the majors. C.J. Cron and Connor Joe are also on the team's active roster. Alan Trejo is playing shortstop with José Iglesias on injured list. Ezequiel Tovar is primed to take over the starting position next year.

Sean Bouchard played infield in the minors but has been used only in outfield as a major leaguer. He has just one extra base hit. Bookard could find himself with a spot on the bench next year if he can improve his numbers.

Brian Serven has been a back-up to Elias Díaz this season. The Rockies' top catching prospect Drew Romo is still learning the ropes in High-A.

Ryan Feltner will start Sunday for the Cubs-Rockies series finale. Jake Bird has stuck with the team since his debut. Chad Smith and Noah Davis are the least-experienced of the group. Davis has yet to make his MLB debut for Colorado Rockies.