Christy Ucheibe got sent off in Wednesday's Uefa Women's Champions League first leg, Round of 32 encounter as 10-woman SL Benfica suffered a 5-0 loss at home to Chelsea.
The Nigerian midfielder was first cautioned in the 31st minute for a foul on Fran Kirby before receiving a second yellow card for a bookable offence against Erin Cuthbert in the 74th minute.
Having squeezed past POAK and Anderlecht to the Round of 32, the Portuguese champions hosted the English giants at the Benfica Stadium with the ambition of boosting their next round chances.