Andrzej Fonfara stopped Julio Cesar Chavez Jr in nine rounds . Carl Froch had hoped to fight Chavez Jr in California in a final swansong . Froch has not fought since knocking out George Groves at Wembley Stadium .
Andrzej Fonfara stopped Julio Cesar Chavez Jr in nine rounds . Carl Froch had hoped to fight Chavez Jr in Las Vegas in a final swansong . Froch has not fought since knocking out George Groves at Wembley Stadium .