Messi, Neymar And Other Barcelona Stars Train Ahead Of Juventus Clash Tonight. Photos

 Barcelona stars were put through their paces on Tuesday afternoon as they prepare for another gargantuan Champions League comeback attempt. They pulled off the greatest recovery in the competition's history the previous round when they came back from a 4-0 first-leg deficit to win 6-1 against Paris Saint-Germain in the second.

But Luis Enrique's side have to do it all over again after losing 3-0 in the first leg of their quarter-final tie against Juventus in Turin last week.

Despite the 3-0 deficit, Lionel Messi and his team-mates looked relaxed but focused as they trained at Barcelona's Joan Gamper Sports Center complex.

And Enrique appeared calm, watching on as Barcelona were put through their paces ahead of Wednesday's clash at the Nou Camp.