Cubs are wearing Jackie Robinson West jerseys during warmups

The Chicago Cubs donned Jackie Robinson West jerseys during warmups on Monday to welcome the U.S. Little League champions to Wrigley Field.

Royals fan makes an amazing play on a foul ball

#Cubs and #JRW took a team photo at Wrigley Field today. #OneCity pic.twitter.com/Bgz0QiVIxR
— Chicago Cubs (@Cubs) September 1, 2014

The Cubs took the local heroes into its dugout and clubhouse during batting practice, while the big leaguers all wore the team's yellow and black camouflage uniforms, with #42 on the back in honor of namesake Jackie Robinson.

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The players of the Jackie Robinson West team have been the toast of the town since their return, with a parade leading to a rally at the city's Pritzker Pavilion last week, courtesy of the Chicago White Sox.

The jerseys worn by the Cubs will be auctioned off after today's game with the proceeds going toward the Jackie Robinson West Little League.

- Brendan Maloy