"Sokratis and Lichtsteiner's age and experience balanced off with one (maybe two) exciting young players".
Emery, preparing for his first season as Arsenal manager, said: 'We are delighted Matteo is joining us.
During his two years at Sampdoria after joining from Pescara, Torreira made 74 appearances and scored four goals for the club.
Primarily a defensively-minded player, Torreira is known for his high energy and tenacious approach and despite only being five foot six he rarely shies away from the physical side of the game.
England makes semi-finals: Southgate praise for prototype Pickford
England goalkeeper Jordan Pickford was notably called into action early in the second half when he saved Marcus Berg's header. It was England's eighth set-piece goal of its 11 in Russian Federation , and the centre back's first in worldwide football.
Ian Wright believes Arsenal have made an excellent addition to their squad in the shape of Lucas Torreira but believes the Uruguay star will need time to adapt to his new surroundings.
Nine of Mauricio Pochettino's Tottenham squad are still representing their respective countries in Russian Federation - before they begin the adaptation process at their new stadium - while both Manchester clubs have seven players who are yet to go on holiday. "Welcome to Arsenal", the North London club tweeted.
"I'd say my main quality is keeping the ball and my passing". I want to establish myself here, which would be fantastic.
"It's a very positive thing that people want to welcome me".