Seattle were already down to nine men in their Cup tie with Portland when the match went into extra time after Brad Evans was sent off .
Obafemi Martins went off injured and could not be replaced after all three substitutions had been made .
Seattle were already down to nine men in their Cup tie with Portland when the match went into extra time after Brad Evans was sent off and Obafemi Martins went off injured and could not be replaced after all three substitutions had been made .