Atalanta coach Gian Piero Gasperini has labelled international friendlies as useless after leading scorer Duvan Zapata was injured playing for Colombia one week ago.
Zapata is expected to be out for three weeks, including next week's Champions League match at Manchester City, with an adductor strain which forced him out of the 0-0 draw against Chile, played in Alicante, Spain, last Saturday.