La Gazzetta dello Sport says how Hickey is in the sights of Milan as cover for left-back Theo Hernandez.
Fode Ballo-Toure has so far failed to convince after his arrival this summer.
Scotland international Hickey, at 19 years of age, has become a starter for coach Sinisa Mihajlovic at Bologna, having already scored 4 goals this season.
He is in his second season in Italy after arriving from Hearts.
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