Highlights: Adonis Stevenson knocks out Dmitry Sukhotsky

Adonis Stevenson rather easily retained his WBC and RING Magazine light heavyweight championships tonight on Showtime, stopping the fringe contender in the fifth round on the fourth knockdown of the fight.

Stevenson (25-1, 21 KO) dropped Sukhotsky in the second round, then three times in the fifth to close the show. Here's the final knockdown, which brought on the stoppage:

Adonis Stevenson ends the show with a bang! WATCH his massive KO - http://t.co/sCmjv16uvP

— SHOWTIME SPORTS (@SHOsports) December 20, 2014