Glen Johnson replaces Mikkel Kessler (injury) in Super Six - ESPN By Dan Rafael ESPN.com Former light heavyweight champion Glen Johnson is joining the Super Six World Boxing Classic, replacing injured Mikkel Kessler, Showtime announced Wednesday. Johnson, 41, has not fought at super middleweight since 2000, but will drop down to the 168-pound weight class to face Allan Green in a Group Stage 3 bout on Nov. 6. The fight will take place at the MGM Grand in Las Vegas on the undercard of the Juan Manuel Lopez-Rafael Marquez featherweight title fight. The other two Group Stage 3 bouts are scheduled for a Nov. 27 split-site doubleheader with Andre Ward defending his belt against 2004 U.S. Olympic teammate Andre Dirrell at an American site to be determined and Carl Froch facing Arthur Abraham in Helsinki, Finland. Ward has already secured a spot in the semifinals of Showtime's six-man modified round-robin tournament, but the five other fighters all remain alive based on the way points are earned -- three for a knockout win, two for a win and one for a draw. Johnson (50-14-2, 34 KOs) will enter with no points and Green (29-2, 20 KOs), himself a replacement for Jermain Taylor, who dropped out after Group Stage 1, also has no points. However, the Johnson-Green winner can advance only with help from results in the other two bouts. Kessler, who was supposed to fight Green, dropped out in late August because of an eye injury. He exits the tournament 1-1 with two points. Johnson's one of those gritty fighters who comes to fight. I don't know how the drop to 168lb will effect him.