Wrexham bushed 10-man Manchester United 3-1 but the recently promoted League Two club's triumph was overshadowed by an wounded to talisman Paul Mullin.
Mullin, 28, suffered a punctured lung successful a collision with goalkeeper Nathan Bishop, portion of a United broadside mostly comprised of Under-21 players.
Goals from Elliot Lee, Aaron Hayden and Sam Dalby sealed triumph for Wrexham.
Marc Jurado scored successful first-half wounded clip for United, who had Dan Gore, 18, sent-off soon aft the restart.
Ryan Reynolds was incapable to be but Wrexham co-owner Rob McElhenney was contiguous arsenic Phil Parkinson's broadside earned a memorable triumph successful beforehand of a sold-out 34,248 assemblage astatine Snapdragon Stadium successful California.
United brag Erik 10 Hag, whose elder players person travelled connected to Texas earlier tomorrow's lucifer against Real Madrid, watched his youthful side's show from the bench.
The Premier League club's starting line-up besides featured the experienced Jonny Evans, who has returned connected a short-term woody aft leaving Leicester City astatine the extremity of past season.
Striker Mullin, who scored 46 goals successful each competitions arsenic Wrexham ended a 15-year lack from the shot league past season, required lengthy attraction earlier walking disconnected the tract with an oxygen disguise astir his cervix aboriginal successful the archetypal half.
Lee opened the scoring aft 29 minutes and Hayden headed successful a 2nd 7 minutes aboriginal - but 19-year-old Spaniard Jurado's side-footed decorativeness halved the deficit.
United's Gore was dismissed aft receiving a consecutive reddish for a tackle connected Andy Cannon aboriginal successful the 2nd half, earlier Dalby headed successful Wrexham's 3rd from adjacent range.
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