On Saturday night, surging WBA Middleweight Champion faces perhaps his most stern test to date in Curtis Stevens.

Tomorrow night two middleweight knockout artists collide.

HBO's hit late-night boxing franchise presents a twin bill of hard-hitting action highlighted by a red-hot middleweight title showdown when HBO BOXING AFTER DARK: GENNADY GOLOVKIN VS. CURTIS STEVENS AND MIKE PEREZ VS. MAGOMED ABDUSALAMOV returns to The Theater at Madison Square Garden for an epic showdown airing SATURDAY, NOV. 2 at 10:00 p.m. (live ET/tape-delayed PT) exclusively on HBO.

This Saturday, November 2nd, the skills and power of WBA Middleweight Champion Gennady "GGG" Golovkin (27-0, 24 KO's) will once again be on display.

He's back! Former welterweight world champion Joshua Clottey 36-4 with 22 KO's has signed an exclusive promotional contract with Star Boxing of Long Island.

On June 29, top-flight middleweight Gennady Golovkin added another impressive knockout to his growing collection.

WBA/IBO Middleweight Champion Gennady Golovkin scored an impressive knockout over Matthew "Mack the Knife" Macklin at 1:22 of round three.

New York, NY (2/25/13) – On March 30th at the beautiful Monte Carlo Casino in Monaco, South Africa's premier promoter Rodney Berman (Golden Gloves Pty), in association with the Principality of Monaco, will stage the opening round of the much-anticipated "Monte-Carlo Million Dollar Super Four" tournament.

UPDATE: Golovkin wins via TKO in 7. More to come.

Gennady Golovkin is the goods.