And it seemed they would coast into the quarter - finals when Millwall defender Jake Cooper was sent off in the 52nd - minute after a rash challenge on Musa earned a second yellow card .
Ahmed Musa , Shinji Okazaki and Demarai Gray all went close to scoring .
It seemed they would coast into the quarter - finals when Millwall defender Jake Cooper was sent off in the 52nd - minute after a rash challenge on Ahmed Musa earned a second yellow card .
Ahmed Musa , Shinji Okazaki and Demarai Gray all went close to scoring .