CHICAGO (CBS) — Some Chicago kids could hardly believe it when former President Barack Obama made a surprise visit on Tuesday.

Mr. Obama showed up for a practice for the Chicago Southside Wolfpack youth football team in Jackson Park.

READ MORE: Flight Attendant Attacked By Passenger, Flight From New York's JFK To John Wayne Airport Diverts To Denver

Mr. Obama had some advice for the players.

READ MORE: CBS 2 Investigation Leads To Thousands Of Tossed Tickets: "Evidence Was Clear"

“Sometimes, you’re going to have some doubts. Sometimes, you’re going to make mistakes. Sometimes, you won’t get what you want right away,” he told the team. “But the key is – can you build that strength in yourself to come back?”

MORE NEWS: One Year After Launching New Store During Pandemic, Sally's Nuts To Celebrate 'Grand Opening' In Highland Park

The team will soon have a new field to play on at Jackson Park, ahead of the groundbreaking of the Obama Presidential Center later this year.

CBS 2 Chicago Staff