Hooiveld says comments from Fergie set them up for their shock win over Manchester City.
"Manchester City at home was a great result, but could have even been 5-1 for us. In recent weeks Southampton have done well. So we lost to Manchester United 2-1, however, Sir Alex Ferguson said we were the toughest team this season which has visited.
"A better compliment is inconceivable," said Hooiveld to Voetbal International.