Two-time world champion Ukraine's Vasyl Lomachenko (8-1, 6 KOs) returns to the ring on ESPN as he defends his World Boxing Organization (WBO) junior lightweight world title against two-time world title challenger and top-10 contender Miguel "Escorpión" Marriaga (25-2, 21 KOs) of Colombia, Saturday, August 5, at Microsoft Theater at LA Live in Los Angeles.