Manchester United produced an outstanding performance to defeatLiverpool and give the manager his first win in the premier league.
Ten Hag was rewarded with a performance that lifted the mood of crisis around Manchester United and left them without a win of the season as he was dropped from the starting lineup.
Marcus Rashford raced clear to beat Alisson after Anthony Martial's pass eight minutes after the interval to give United a 2-0 lead after 16 minutes.
Mo Salah set up a tense finish when he headed in a goal with nine minutes left, but United survived to give Ten Hag just the sort of victory he needs to make his mark.