Real Madrid suffered a painful home loss to rival Barcelona in the first leg, and Los Galacticos may be in for more of the same on Tuesday at Camp Nou in the second leg of the Champions League semi-finals.

It will take an overwhelming victory for Real Madrid to advance to the final at Wembley Stadium, and that's a tall order. The last time these two clubs met at Camp Nou, Barcelona blew out Real Madrid, 5-0.

Lionel Messi, David Villa, and Pedro will be a tough task for Real Madrid's defense, and without Pepe and Sergio Ramos, who are out due to suspension, a lot of the responsibility will be on Marcelo and Ricardo Carvalho.

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.