In the late-afternoon kick-off, Serge was part of the Ivory Coast side that lost 2-0 at home to Morocco in their final group stage match in the African qualifying section.
Victory would have taken Ivory Coast through as winners of their group, but Morocco were able to hold onto top spot and punch their ticket to the finals at the expense of their hosts.
Serge, who went close to reducing the arrears in the second half, only to fire over the bar, completed the full 90 minutes.
Midfielder Christian, meanwhile, lined up for Denmark as they drew 0-0 with Republic of Ireland in the first leg of their qualifying play-off in Copenhagen.