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Benfica was the Portuguese club where Kostas Mitroglou played. The Greek striker joined Benfica in 2015 and spent two seasons with the club. During his time at Benfica, Mitroglou scored 36 goals in 93 appearances, helping the team win the Primeira Liga title in 2016. He also played a key role in Benfica's run to the Champions League quarter-finals in 2016-17.