Purchase tickets to see a game at Antoinette Tubman Stadium. If there's nothing scheduled while you're there, you might like to check if the stadium offers a guided tour of the grounds.
Situated in Monrovia, this sporting facility is well worth including on your itinerary. But you'll find a great deal more to see in the area. Liberian National Museum, TM Mall, and Ce Ce Beach aren't too far from Antoinette Tubman Stadium.