The WBO officially approved former middleweight champion Arthur Abraham as the new mandatory challenger.
Champion Robert Stieglitz had to defend his title on May 5 in a fight against George Groove but the latter suffered a nose injury in a training camp.
The WBO gave Stieglitz an opportunity to make a voluntary defense on May 5, the winner will face Abraham within 90 days, Boxingscene reports.
Follow NEWS.am SPORT on Facebook, Twitter and Telegram
14:18 , September 9 
12:32 , September 9 
11:12 , September 9 
10:55 , September 9 
09:35 , September 9 
09:06 , September 9 
00:57 , September 9 
00:01 , September 9 
19:03 , September 8 
18:07 , September 8 
