Barca face must-win situation against Rayo

FC Barcelona have no room for error when they entertain Rayo Vallecano in the Camp Nou Stadium on Tuesday night. The reigning Primera Liga champions go into the match six points behind Real Madrid in the race for this year's title and on the back of a surprise 1-0 defeat away to Getafe on Saturday night. The Getafe game was played just three days after Barca had won a hard-fought win away to AC Milan in the Champions League and Pep Guardiola' s men looked jaded as they tried to break down a well-ordered home defense. Tuesday night's game has been brought forward because of Barcelona' s participation in the World Club Championship next month and the timing of the game means that Barca once again have little time to gather their strength, although nothing other than a win will serve their title ambitions. Guardiola is likely to rotate his side once again with Andres Iniesta and Cesc Fabrigas, both of whom missed out at the weekend through injury, back in the side, while David Villa, who has been disappointing in recent matches could well be rested. Wingers Pedro Rodriguez and Issac Cuenca could also make the starting 11 as Guardiola aims to take full advantage of the side of the Camp Nou pitch. The Barcelona players have all made a show of confidence that the title race is far from lost, but the fact is that Barca now have little room for error. They travel to play Real Madrid in the Santiago Bernabeu Stadium on December 10 and that game looks increasingly like the key moment of the season. Another factor to bear in mind is that Sergio Busquets and Gerard Pique are one booking away from suspension. The duo will probably try to force a yellow card on Tuesday, which would see them suspended for the weekend game against Levante, but able to make the trip to the Santiago Bernabeu without problems. Rayo meanwhile travel to Barcelona following a 2-1 home defeat against Valencia. Jose Ramon Sandoval has built a well-ordered side on a tight budget and will look to keep things organized in defense and hope that tired legs again take their toll on the Barca players.