"[In the] first half we controlled the game, but just couldn't score," Sky Sports News quotes him as saying. "After our goal, I thought we were going to play better and get the second goal, but they just took their chances.
"We have a strong team here at United, some good players, so I am in no doubt we will put it right.
"We will just go out and try and win the next one. We should be playing better, but sometimes this happens."
United are currently 12th in the league table with seven points from six matches.