Callum McManaman helped Wigan reach the FA Cup quarter-finals for the first time in 26 years as they comfortably beat Huddersfield.
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The 21-year-old opened the scoring when he angled his shot in after 31 minutes.
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Nine minutes later, Arouna Kone doubled the lead, tucking in following McManaman's cross to Jordi Gomez.
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James McArthur drilled in a third and, although Lee Novak's header gave the Championship side hope, Kone added his second a minute before the end.
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Wigan suffered a couple of scares in the second half as substitute James Vaughan also went close with a decent header, but once the impressive McArthur made it 3-0 11 minutes after the break it was an insurmountable task for the Terriers.
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Roberto Martinez's side will now face Oldham or Everton in the next round, and they established their advantage in the game thanks to some clever wing play from McManaman, who is a distant relative of the former Liverpool winger Steve.