USE THE FLANKS
Under Valverde, Barcelona push their attacking full-backs Sergi Roberto and Jordi Alba high up the pitch, so there is space to exploit behind them. Goals have been scored against Valverde’s team this season by targeting this area.
PACE ON THE BREAK
As former Barcelona hero Pedro has revealed, one of Chelsea’s best assets is their sheer pace on the break.
Expect Barca to have most of the possession, so hitting the Spaniards on the counter with the speed and skill of Eden Hazard, Willian and Pedro will be crucial.
The Belgian has scored 17 goals this season, including six in his last six games.
His performance will be vital, especially as he will be able to play off central striker Alvaro Morata, likely to return against the Catalans, which he much prefers.
A potential match winner for Chelsea.
2006/07 Champions League (Group Stage) Chelsea 1 (Drogba) Barcelona 0 Barcelona 2 (Deco, Gudjohnsen
The ability of a young player like Andreas Christensen to stay cool under constant pressure will be crucial and N’Golo Kante in front of the defence will have to be everywhere once again.
CHELSEA V BARCELONA HEAD TO HEAD CLASSICS
2004-05 Champions League (last 16) Barcelona 2 (Lopez, Eto’o) Chelsea 1 (Belletti og)
Chelsea 4 (Gudjohnsen, Lampard, Duff, Terry) Barcelona 2 (Ronaldinho 2, 1 pen) (Chelsea won 5-4).
2005-06 Champions League (Last 16) Chelsea 1 (Motta og) Barcelona 2 (Terry og, Eto’o)
Barcelona 1 (Ronaldinho) Chelsea 1 (Lampard pen). (Barcelona won 3-2).
Ex-Chelsea star Fernando Torres scored an unforgettable goal against Barcelona
2006/07 Champions League (Group Stage) Chelsea 1 (Drogba) Barcelona 0
Barcelona 2 (Deco, Gudjohnsen) Chelsea 2 (Lampard, Drogba)
2008-09 Champions League semi-final Barcelona 0 Chelsea 0
Chelsea 1 (Essien) Barcelona 1 (Iniesta). (Barcelona won on away goals)
2011-12 Champions League semi-final Chelsea 1 (Drogba) Barcelona 0
Barcelona 2 (Busquets, Iniesta) Chelsea 2 (Ramires, Torres) (Chelsea won 3-2)