 He joined Hungarian side Újpest FC on loan, he scored 11 goals in his first 10 games for the club, scoring in every single one of the games.On 24 October 2015 he created a much-publicized controversy, when 39-year old club legend Péter Kabát wanted to take a penalty which he earned, but Diagne tucked the ball under his shirt and eventually converted the kick himself.In fact neither Kabát nor Diagne but Balázs Balogh was the designated penalty taker.