Barcelona manager Josep Guardiola says that he is under no illusions that the team must start winning after they only managed a 1-1 tie against Racing on Sunday to make it four games without a win in all competitions.

The Blaugrana have earned just one point and scored one goal in their opening two matches, making it their worst start to a season since 1973-74.

"We know that at the end of the day you're judged on results," said Guardiola. "But I'm happy with the Racing game because even though we didn't win, we played well.

"Yes, it does make you a bit uncomfortable and the players know that at this club you have to win every game. That's why starting with a home win is crucial."

A win against Sporting is a must, and Guardiola says he is confident that he has the Portuguese side's number despite acknowledging them to be a good team.

"I reckon it'll be a fine match because I've seen how we play and how they play," the ex Barca midfielder added. "I know how to approach the game and how to get at their defence and counter their strengths. We've got to go for it and win the game."

"They look good especially in midfield and up front. They are quick on the break and have some superb players such as Moutinho, Veloso and Rochemback, who used to play for Barça."

Derek Wanner, Goal.com