Ji-sung Park is confident Manchester United can complete consecutive Champions League victories over Otelul Galati on Wednesday night but has warned they cannot afford any lapses in concentration.
In September, United were held to a shock 3-3 draw against Basel at Old Trafford after leading 2-0 at half-time before a late Ashley Young goal saved their blushes.
The Red Devils sit two points behind Benfica in second place following an assured 2-0 victory in Romania a fortnight ago and will look to move closer to qualification from Group C by beating Otelul at home.
Park reflected on the Basel result and is keen to avoid further embarrassment at home as he anticipates a tough fixture for United.
"We were winning 2-0 at half-time, we lost our concentration and they were able to go 3-2 up," he told the club's official website about the Basel game.
"But we have that experience now, so we know what happens when we lose concentration, and if we are United we have to do a proper job against Galati.
"In the first couple of matches we couldn't get the results we wanted, but now we have five points. We need to win if we want to get through the group stage in first position.
"Galati's not an easy game. Away in Romania we won 2-0, but it was a tough game for us. Old Trafford is a different situation and we have to show them that."