Kansas City Chiefs running back Jamaal Charles will miss the remainder of the season because of a torn ACL in his right knee.

The star running back hurt his knee in the third quarter of Sunday's loss to Chicago. An MRI on Monday confirmed the tear.

Charles was making a cut deep in Bears territory on Sunday when his right knee buckled at a gruesome angle. The four-time Pro Bowl selection needed help from a trainer and linebacker Justin Houston to get off the field, never once putting any weight on the leg.

Charles tore the ACL in his other knee four years ago, missing most of the season.

Luck fully participates in practice

Indianapolis quarterback Andrew Luck was a full participant in Monday's practice for the first time in two weeks, though his availability for Sunday's showdown with New England remains unknown.

Luck is still day-to-day because of a sore right shoulder and had been limited in practice since leading Indianapolis to a 35-33 win at Tennessee on Sept. 27.

Cardinals sign Freeney

The Cardinals reportedly signed outside linebacker Dwight Freeney to a one-year contract. The move comes after the Cardinals' top pass rusher, Alex Okafor, went down because of a calf injury in Sunday's 42-17 victory at Detroit. The 35-year-old Freeney, a seven-time Pro Bowl player, has 111 career sacks and led the NFL with 16 sacks in 2004.

... Browns star cornerback Joe Haden likely will miss one game because of a concussion sustained during Sunday's win at Baltimore.

... Jets defensive end Sheldon Richardson returned to practice after serving a four-game suspension for violating the NFL's substance abuse policy.

college basketball

Report: UCLA altered grades

A report in the Chronicle of Higher Education details how the UCLA men's basketball program kept some of its players academically eligible despite missed classes, instances of plagiarism and grade changes that appeared to violate school policy.

The accusations were brought by Will Collier, the basketball team's academic coordinator until January when he left for another job.

The breaking point for Collier came just before Christmas last year. A Bruins player who had missed numerous classes had received a C-minus in a communications class when he needed a B to remain eligible for team activities. According to Collier, assistant coach Duane Broussard — the team's academic liaison — approached him about getting the professor to change the grade.

The professor eventually changed the grade, saying the player offered a medical reason for missing the classes and the player remained eligible.

... Louisville assistant coach Ralph Willard will take an indefinite medical leave of absence to address an unspecified health issue.

minnesota scene

Brooks co-freshman of week

Gophers running back Shannon Brooks was named Big Ten Co-Freshman of the Week, along with Michigan safety Jabril Peppers.

Brooks rushed 17 times for 176 yards and a touchdown in Saturday's 41-13 win over Purdue. That's the most rushing yards for a Gophers freshman running back since Laurence Maroney put up 179 on Illinois in 2003.

Brooks is the first Gophers player to earn Big Ten Freshman of the Week honors since Chris Streveler on Sept. 22, 2014.

JOE CHRISTENSEN

around the horn

Golf: Sandra Spuzich, the 1966 U.S. Women's Open champion who won six other LPGA Tour titles, died. She was 78.

Boxing: Manny Pacquiao said that his surgically repaired shoulder is 80-90 percent healed and he expects to resume training in November or December, with a return to the ring in March.

staff and wire report