Ernesto Valverde is wary of a Roma fightback spearheaded by Edin Dzeko, despite Barcelona taking a handsome 4-1 advantage to the Stadio Olimpico for the second leg of Tuesday's Champions League quarter-final.
Luis Suarez rounded off victory last week to give Barca a foot in the semi-finals but Valverde feels Edin Dzeko's away goal at Camp Nou was a demonstration of the threat Eusebio Di Francesco's side can carry with home support.
"They're going to have even more intensity tomorrow because when you're playing catch-up, you look to get the first goal and I imagine that will be their aim, so we've got to be alert," he told a pre-match news conference.