Barnet player-manager Edgar Davids was sent off during Friday's 1-1 draw with Accrington Stanley, following a foul on ex-England striker James Beattie.
The Dutchman earned a second yellow card in the 86th minute after catching the former Everton forward - who was making his Accrington debut - with a late tackle.
Romuald Boco had put the visitors 1-0 up shortly after halftime, before Mark Byrne levelled from the penalty spot.
Davids' early exit brought an end to a bad week for the former Netherlands international, after he recently swore on live television.
The 39-year-old, who once starred for Italian giant Juventus, holds the role of joint manager at Underhill alongside Mark Robson.
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