Allegri still sees room for improvement

Football Soccer - FC Barcelona v Juventus - UEFA Champions League Quarter Final Second Leg - The Nou Camp, Barcelona, Spain - 19/4/17 Juventus coach Massimiliano Allegri Reuters / Albert Gea Livepic

MILAN (Reuters) - Ever the perfectionist, Juventus coach Massimiliano Allegri still sees room for improvement in his side even after they taught Barcelona a lesson in how to play a two-leg European tie.

The Serie A champions tore into Barcelona to win the home league 3-0 one week ago, then gave a defensive masterclass, comfortably containing Lionel Messi, Luis Suarez and Neymar, as they held out for a 0-0 draw in the return on Wednesday.