The one-time WBC welterweight title holder moved through the gears until the sixth round when Berto put Lopez down before capitalizing on the vulnerability of his opponent.
With the victory, which was Berto’s second in a row since he suffered back-to-back losses to Jesus Soto-Karass and Robert Guerrero, the Florida native pushed his record to 30-3 with a 23rd KO.
Lopez, 30, falls to 33-7 as his run of three victories came to an end in spectacular fashion.
Watch the video from the Spike TV televised fight night provided by PBC. Visit the PBC website at premierboxingchampions.com