The event is sponsored by Athletes Unlimited, which is one of the country's only professional women's softball leagues.
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Athletes Unlimited recently announced a five-year extension to its stadium lease at the Parkway Bank Sports Campus.
Alyssa Denham and Tori Vidales joined ABC7 Chicago to talk about the celebration.
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A 12-foot tall softball will be on display for photo opportunities, as well as giveaways and several meet-and-greets.
The celebration will be from 11 a.m. to 3 p.m. at Clark and Washington.
ABC7 Chicago Stream team practices softball skills