Louis van Gaal has praised his Manchester United side for their 'unbelievable' team spirit after they came from a goal down to beat Preston North End 3-1 in the FA Cup on Monday night. The Red Devils will play Arsenal in the quarter-finals after seeing off the League One side at Deepdale, with goals from Ander Herrera, Marouane Fellaini and Wayne Rooney. However, it took a Scott Laird opener for Preston for Van Gaal to change his system and see his team finally spark into life. The Dutchman claims that he was 'satisfied' before that moment, and delighted afterwards. Louis van Gaal - pictured with captain Wayne Rooney - was proud after Manchester United beat Preston
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Manchester United beat Preston North End 3-1 on Tuesday night
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Red Devils through to FA Cup quarter-finals after victory at Deepdale
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Scott Laird had put the League One side in front in the second half
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Ander Herrera, Marouane Fellaini and Wayne Rooney sealed win for United
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Louis van Gaal says visitors' team spirit was 'unbelievable'
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Man United will host Arsenal at Old Trafford in the sixth round
@placeholder celebrates after equalising at Deepdale as United went on to win