Real Madrid suffered a painful loss on their home field to their rival Barcelona in the first leg, and things could turn out much worse for Los Galacticos on Tuesday at Camp Nou in the second leg of the Champions League semi-finals.

It will take a convincing victory for Real Madrid to advance to the final, and that's a tall order. In their last meeting at Camp Nou, Barcelona thumped Real Madrid, 5-0.

Lionel Messi, David Villa, and Pedro will be a tough task for Real Madrid's defense, considering Pepe and Sergio Ramos will not be in the line-up due to suspension.

Real Madrid will be focused on their offense, however, and that means Barcelona can play defensive, and use counter-attacks to score on their rivals.

Barcelona is strong in all areas, and knowing Real Madrid will be desperate to score will allow the Catalans to play their typical passing game that will force Real Madrid to chase after the ball.

The one thing that Real Madrid may have going for them in Tuesday's match is a historical fact. The last time Real Madrid won by two goals in an away leg of a Champions League knockout tie was against Barcelona in 2002.

Chances of a convincing victory over Barcelona remain slim, but at least Los Galacticos have some history on their side.

That might be the only thing Real Madrid can cling to.

Probable lineups:

Barcelona (4-3-3):

G: Victor Valdes;

D: Carles Puyol, Javier Mascherano, Gerard Pique, Dani Alves;

M: Sergio Busquests, Xavi, Andres Iniesta;

F: David Villa, Lionel Messi, Pedro.

Real Madrid (4-2-3-1):

G: Iker Casillas;

D: Marcelo, Raul Albiol, Ricardo Carvalho, Alvaro Arbeloa;

M: Xabi Alonso, Lassana Diarra; Angel di Maria, Mesut Ozil, Cristiano Ronaldo;

F: Gonzalo Higuain.