The world's top light flyweight was in action last night as Edgar Sosa thrilled a packed hometown Arena Revolucion in Mexico City with the 9th defense of his WBC title.
Seasoned Panamanian Carlos Melo came into the bout with the reputation as an iron-chinned stylist but the former WBA minimumweight title challenger was in over his head from the start against the magnificent Sosa.
By the third frame the quick but heavily outgunned Melo was on the canvas from the champion's two-handed assault but beat the count and soldiered on.
Melo bravely soaked up the onslaught in the fourth but a shattering left hand to the liver took the legs out from under the challenger in the fifth.
The Panamanian got back up on shaky ground and faced a barrage of uppercuts from Sosa until referee Frank Garza jumped in to stop the carnage at 2:47 of the frame.
Sosa improves to 36-5 (20), by winning his 24th consecutive contest and the WBC champion continues to stand firmly atop the light flyweight division.
Melo suffers the first stoppage of his career to fall to 19-9 (2).
The quality undercard featured fireworks and big names on the domestic scene.
Light middle Michael Medina, 21-1-2 (17), turned out the lights of Francisco Villanueva, 7-22-2 (4), in the third for the Mexican title while lightweight Daniel Estrada, 18-1 (14), rubbed out Carlos Winston Velazquez, 13-5 (8), in the eighth for the WBC Cabofe belt.
With the WBC Continental Americas lightweight title at stake, Reyes Sanchez, 15-2-1 (10), fought Rene Gonzalez, 24-1-1 (19), to a six round technical draw.