The Uruguayan midfielder recorded his first Premier League goal for the Gunners against arch-rivals Tottenham, becoming just the fourth man to do so
Lucas Torreira stands alongside Nicklas Bendtner, Per Mertesacker and Mikael Silvestre in a surprising Arsenal derby goal club.
The Uruguayan has never been renowned for his ability to find the net, with his game more about keeping opponents out than troubling the goalkeeper at the opposite end of the field.
He did manage four goals for Sampdoria last season, but it was not those efforts which enticed Arsenal into a £26 million ($33m) deal.