Manuel Pellegrini: "If we go and see the statistics of the games we've played away, of course it must be a worry for us.
"It's a thing we must improve and we must work hard defensively as a team.
"Of course we are worried about that; we have one point from nine, so we need to win.
"Now we play four away games in a row, so this is the best moment for us to win points, first in the Premier League against West Ham and then in the Champions League.
"West Ham are a very strong team and we are aware of that.
"I don't know what he [Sam Allardyce] will do, but maybe he will try the same as Villa did against us with nine or ten men behind the ball and try to get us on the counter attack.
"But we must prevent a lot of the unnecessary mistakes or fouls, keep our concentration and continue the way we are playing."