Joe Jacobson was sent off as Wycombe’s promotion hopes were dealt a blow following a 1-0 defeat against Colchester United in League Two.
Jacobson, 30, saw red for the first time in Wycombe colours on a frustrating night at the Weston Homes Community Stadium.
He collected two bookings in the final 10 minutes - one for obstruction and one for a trip on Tarique Fosu.
Wycombe slipped to 10th place in the table, but remain a point off the playoffs.