Giorgio Chiellini warns Juventus to remain tight at the back
Juventus travel to the Nou Camp with a healthy advantage after they beat Barcelona 3-0 in their Champions League quarter-finals first leg in Turin.
But Juve will be wary after Barca pulled off the largest comeback in the competition against Paris Saint-Germain in the last 16, overturning a 4-0 first-leg deficit to progress 6-5 on aggregate.
And Chiellini insists Juve must press high and keep Lionel Messi, Neymar and Luis Suarez quiet to book their place in the semi-finals.
Giorgio Chiellini says Juventus need to keep Lionel Messi, Luis Suarez and Neymar quiet
"If we can keep their key players away from the danger areas, press them high up the field and remain compact and organised, it will make life very difficult for them," he told the club's official website.
"If we go there, sit back and try to soak up pressure, we will lose.
"Barcelona have the best frontline in the world and their three strikers are probably three of the top five individuals.
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"They are extraordinary players, each with their own unique qualities. You prepare for challenges like this by closing the spaces and being brave in what you do.
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"These guys are like sharks; if you show a sign of nerves, they smell the blood and finish you off.
"Instead you have to push them back as far as you can, double up when they are in possession and shut down the lines between defence and midfield."