In Monrovia, Senegal took the lead through midfielder PapeBoubaDiop who headed a cross from Abdoulaye Faye past Liberian goalkeeper Louis Crayton after 37 minutes.
The 2002 World Cup quarter-finalists also missed a penalty in the second half with PapeBoubaDiop blasting his spot kick against the bar after Ibrahima Faye was brought down in the box.