Viloria banging Sosa hard backing him up. Viloria looks strong to start the 5th. Sosa starts to answer with nice counters stopping Viloria's attack momentarily. Midway throught he action has slowed. Sosa attacking and Viloria looking to avoid exchanging. Viloria dancing away from Sosa's attack. Pretty weak in my opinion. Sosa looks good taking the 5th 10-9.