By Dan Ambrose: Julio Cesar Chavez Jr. and Daniel Jacobs have signed the contract for a fight on December 20th in Phoenix, Arizona, according to @ChrisMannix. The fight will take place at 168 pounds. It’s interesting that Jacobs (35-3, 29 KOs) has chosen to stick it out with the 33-year-old Chavez Jr. as an opponent […]