CHICAGO (AP) Chicago police say they're investigating an allegation of sexual assault against Pittsburgh Pirates infielder Jung Ho Kang.

In a statement Tuesday, police said a 23-year-old female reported being assaulted by Kang inside a hotel. Police spokesman Anthony Guglielmi said the Chicago woman met Kang through a dating app. Kang invited the woman to his hotel room on June 17.

The woman said she blacked out, then drifted in and out of consciousness as he sexually assaulted her.

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The 29-year-old Kang has not been charged. He was not the lineup Tuesday night against the St. Louis Cardinals

Pirates team president Frank Coonelly said in a statement the team was taking the allegation ''extremely seriously'' and was cooperating with Major League Baseball. Coonelly declined further comment.