Southampton defender Jannik Vestergaard says Kevin Danso needs to learn from his red card.
Saints' deadline day signing was sent off during the 1-1 draw with Manchester United.
Vestergaard said, “He knows what he can do. It was an unfortunate red card and it made it difficult for the team to fight for three points and even for holding onto the draw.
“He played well until then and he is an aggressive player who doesn't wait for anyone to come to him.
“Many times it works well, and we win the ball up high which gives us chances.
“On this occasion, he was late and got a second yellow card. It is what it is."