Russia’s Chudinov, the interim champion and former middleweight king Sturm only found out on Friday that the full WBA belt would be on the line following the organisation’s decision to strip Carl Froch for inactivity.
Chudinov scaled 166.4lbs (75.5kg) for the bout, whilst Sturm came in at 166.8lbs (75.7kg).
In the co-feature, Germans Jack Culcay and Maurice Weber weighed 153 (69.4kg) and 153.2lbs (69.5kg) respectively and will contest the interim super welterweight belt with the same body.
Both encounters take place at the Festhalle in Frankfurt, Germany this Saturday night.
