Romelu Lukaku "cost the same as all of Getafe", Jose Bordalas said after his side's Europa League loss to Inter.
Goals from Lukaku and Christian Eriksen saw Inter record a 2-0 win over the La Liga side in the last-16 clash in Gelsenkirchen on Wednesday.
Signed by Inter from Manchester United for a reported €80 million (£72m/$95m) last year, Lukaku has scored 30 goals this season.
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Getafe boss Bordalas said the difference between his team and Inter was enormous, highlighting how much Lukaku cost.