"We played well today," he told MUTV. "We're definitely not getting a lot of good fortune going our way, but we've got ourselves to blame for the opportunities we missed.
"I thought we played some good football, we got to the byline, but just couldn't pick anyone out in the box. I think it (the deflected free-kick) summed it up. That went in after we'd controlled the majority of the game. I think it was going wide, but it took a wicked deflection and went in.
"That's when you know that your luck isn't in. It's just not going for us. It was a difficult day, the conditions were tough. We had opportunities to get at least a draw and they scored a world-class second goal which was hard to defend against."
United are currently seventh in the league table with 40 points from 24 matches.