Barca lose key players for Champions tie with Arsenal

BARCELONA, Spain, Mar 8 (AFP): Barcelona have defensive worries ahead of Tuesday's showdown with Arsenal which midfielder Seydou Keita has described as crucial for their season. Keita scored the only goal as Barcelona kept up the pressure at the top of La liga with a 1-0 win over Zaragoza at the weekend and now they turn their attention to the Champions League where they must overturn a 2-1 defeat at the Emirates to progress to the quarter-finals. "Against Arsenal we have to go out with a strong mentality as this is probably the most important game of the season," said Keita. "The key is not to let them score a goal because I'm sure that (Leo) Messi, (David) Villa and Pedro (Rodriguez) will get on the scoresheet in attack for us."