Best practice EVER?!?!
A youth football team in Chicago got the ultimate surprise visit on Tuesday ... when none other than President Barack Obama came through to give an epic pump-up speech!!!
#44 popped up at Jackson Park to visit the Chicago Southside Wolfpack football team ... and naturally, the kids and coaches lost their minds when they saw the local legend in the flesh.
Barry O gave some solid pointers to players about life on and off the field ... saying, "Sometimes, you’re going to have some doubts. Sometimes, you’re going to make mistakes.