By Tom Gott Barcelona centre-back Ronald Araujo has insisted he remains happy at the club, rubbishing reports he could leave this summer. While Araujo remains a key player for Barcelona, it has been suggested that he could be sold this summer to raise a significant sum of money, with the likes of Bayern Munich and Manchester United tipped to make bids for the Uruguay international. However, Araujo has moved to put the speculation to bed, stressing his happiness with life at Barcelona. “There has been a lot of talk about this, but I’m happy at Barcelona,” he told La Quinta Tribuna. “Besides, we…