By Keith Idec

Sergey Kovalev will fight another southpaw in his next fight, this time an unbeaten American Olympian.

The date for the Kovalev-Browne bout hasn’t been finalized. It could take place as early as June 23.

Whenever it happens, Browne (21-0, 16 KOs) has accepted by far the most challenging assignment of his five-year professional career. The Staten Island, New York, native has scored quick knockouts in back-to-back bouts, but those impressive victories came against fringe light heavyweight contender Sean Monaghan (29-1, 17 KOs) and Francy Ntetu (17-2, 4 KOs).

The 27-year-old Browne beat Ntetu by first-round technical knockout January 20 at Barclays Center in Brooklyn.

In Kovalev (32-2-1, 28 KOs), the tall, strong southpaw will encounter an elite light heavyweight champion who has lost only to former pound-for-pound king Andre Ward (32-0, 16 KOs). Russia’s Kovalev, who’ll turn 35 on April 2, has begun rebuilding his reputation since suffering a controversial eighth-round technical knockout loss to Ward in their light heavyweight championship rematch June 17 in Las Vegas.

He won back the WBO 175-pound championship he lost to Ward in their first fight by knocking out Ukraine’s Vyacheslav Shabranskyy (19-2, 16 KOs) on November 25 at The Theater. Kovalev’s second-round stoppage of Shabranskyy enabled him to take back the title Ward vacated when he retired in September.

Kovalev returned to The Theater to stop fellow Russian Igor Mikhalkin (21-2, 9 KOs) in the seventh round March 3. There was talk of Kovalev fighting WBA champ Dmitry Bivol (13-0, 11 KOs), who stopped Sullivan Barrera (21-2, 14 KOs) in the 12th round on the Kovalev-Mikhalkin undercard, in his next bout.

If they both continue winning, a Kovalev-Bivol bout probably won’t take place until later this year. That opened up this opportunity for Browne, who turned down chances to face Kovalev on November 25 and March 3 because he wasn’t offered an acceptable purse.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.