It seems there might be some confusion in the information provided. As of my last knowledge update in January 2023, Bakaye Traoré, the Malian footballer, was playing for the Chinese club, Changchun Yatai. He had previously played for AC Milan, but there was no recent information about him being part of the AC Milan squad.
If there have been updates or changes to Bakaye Traoré’s club affiliation and he is indeed part of the AC Milan squad playing in the Champions League round of 16 against Barcelona, it would be a significant development for his career.
Please note that player transfers and team assignments can change, and it’s recommended to check the latest and most reliable sources for the current status of football players and their teams.