Upon entering the high waters of the light welterweight division, Mexican superstar Juan Manuel Marquez (54-6-1, 39 KOs) got to experience a battle with an Eastern European veteran. In April, Marquez, who recently celebrated his 39th birthday, acquired the vacant WBO-interim junior welterweigh title by delivering a sound boxing lesson to a skilled Ukrainian technician, Sergey Fedchenko (30-2, 13 KOs). The latter is just one-fifth of a huge ex-Soviet presence in this particular weight class, which also consists of a trio of undefeated Russian prospects - Denis Shafikov and Khabib Allakhverdiev (17-0, 8 KOs) and Ukrainian stylist Victor Postol (19-0, 9 KOs), as well as battle-tested slugger Ruslan Provodnikov (22-1, 15 KOs).