Golden Boy Promotions match maker Eric Gomez said that Maidana (30-2, 27 KOs) will face Petrov in the Villa Ballester area of Buenos Aires, where Maidana has lived since he was 16.
The 28-year-old Maidana was supposed to have fought Guerrero on Aug. 27 on HBO but Guerrero had to pull out because of a shoulder injury.
The WBA then named Maidana what it calls its “regular champion.” Amir Khan is the WBA 140-pound titleholder.
The Russian-born, 28-year-old Petrov (29-2-2, 13 KOs) of Madrid, Spain, has a 13-fight winning streak, including
Petrov has competed mostly in six-to-eight round fights, having gone as many as eight rounds only four times.
Lem Satterfield can be reached at email@example.com