Jermell Charlo enters the biggest fight of his career vs. Canelo Alvarez as family turmoil continues to simmer

Jermell has always had his twin brother, Jermall, in his corner, but many don't think that will be the case on Saturday

For anyone who has followed boxing closely over the last decade, it has been difficult to ignore just how different undisputed junior middleweight champion Jermell Charlo has sounded as he sets for the biggest fight of his professional career against Canelo Alvarez. 

Charlo (35-1-1, 19 KOs) will boldly move up two divisions to challenge Alvarez (59-2-2, 39 KOs), the undisputed super middleweight champion, in the first meeting in men's boxing history between reigning four-belt kings. Yet as we draw closer to this superfight inside T-Mobile Arena in Las Vegas (Showtime PPV, 8 p.m. ET), gone has been the typically nasty, intense version of the Houston native who, like twin brother and WBC middleweight champion Jermall Charlo, completely embodies their "Lions Only" branding. 

In its place has been a mature version of the 33-year-old Charlo, who has given Alvarez his props at just about every turn and appears ready for the daunting challenge ahead of him as a 3-1 underdog set to face one of the pound-for-pound best fighters of the modern era.