all the action. >> what's up, chicago! >> reporter: in chicago, a rock star reception for the little league team. >> we had the national little league champions! >> reporter: that did something bigger than just win the u.s. championship. the jackie robinson west all-star not only brought the first national little league victory to chicago in 47 years, they're redefining what it means to be from the city's south side where some of the players grew up in a few of the most violent neighborhoods in chicago. and who they are was honored. the team starting at their home field, jackie robinson park. making their way by trolley through the streets of chicago. >> it was, you know, such a very priceless moment. >> reporter: just one win away from being the first all african-american team to claim the world series title when they lost to south korea this weekend. but there was still so much to celebrate here and in philadelphia. where the team knocked out of competition by jackie robinson west got their own parade. sharing their glory with mo'ne the first female pitcher to