Gregoire Defrel rose to drive an unstoppable volley beyond Red Star Belgrade's Damir Kahriman on Thursday, giving Serie A upstart Sassuolo a precious 3-0 advantage after the first leg of their Europa League play-off.
The Rajko Mitic Stadium is one of the most intimidating venues on the continent, but in its first-ever European excursion, Sassuolo appears to stand a good chance of reaching the competition's group stages.