"But we always play well against the big clubs and I hope that continues against United.
"Every single point we take or drop may count in the final table, so we have to be very careful in every match we play now.
"After United, we have Birmingham and then Liverpool and Chelsea.
"We have to start taking points away from home if we want fourth."
Meanwhile, Bolton midfielder Gary Speed admits he wants to enter management when he retires.
"If you're a player you want to play for your country, if you're a manager you want to lead them it's the same emotion," he told the Bolton Evening News.
But the evergreen 36-year-old is not thinking of retirement just yet.
"I've got another year left on my contract and I want to keep going as long as I can," he said.