After Atalanta’s 0-0 draw against Celtic in the UEFA Champions League at Gewiss Stadium, manager Gian Piero Gasperini discussed his decision to substitute Nigeria international Ademola Lookman for the second consecutive match. Lookman was subbed off at halftime in a recent Serie A fixture and was taken off after 68 minutes in this match. Gasperini explained that Lookman was not at peak physical form after returning from international duty with Nigeria, which influenced the substitution decision. Gasperini also mentioned that Lookman, along with Retegui, gave their best but found it challenging to maintain intensity after their national team games.