Segments include an expanded look at concussions in the NFL; a report on the collapse of the Dallas Cowboys' practice facility in May, 2009; and a visit with pro golfer Ken Green, who lost a portion of his leg in an RV accident.

Segments include a profile of U.S. figure skater Johnny Weir; a report on drug testing at the Olympics; a look at the sport of curling in Canada; and a visit with former U.S. downhill skier Bill Johnson, who won gold at the 1984 Winter Games.

Included: a conversation with Michigan State basketball coach Tom Izzo; a report on sportswriters who decided to begin the process of changing their gender; a visit with former paralympic skier Mike May; and an update on a youth soccer program in Haiti.

A special boxing edition focuses on the deaths of fighters Arturo Gatti, Vernon Forrest and Alexis Arguello, who all died within a four-week span in 2009. Included are profiles of the champions and a look at the circumstances surrounding their deaths. Correspondents include Frank Defort and Jon Frankel.

Included: an interview with Southern California football coach Lane Kiffin; a profile of dogsled racer Lance Mackey; a look at the trend of runners going barefoot; and an update on wrestler Kyle Maynard, who was born with no arms or legs. Correspondents include Bernard Goldberg.

Segments include a chat with Oakland pitcher Dallas Braden about his perfect game; a profile of gay rugby player Gareth Thomas; a look at the chess craze in Brownsville, Texas; and a feature on racism in soccer.

Segments include a report on women's bodybuilding; a profile of golfer Erik Compton, who has had two heart transplants; a revisit with California sports marketer Lloyd Lake; and an interview with Seahawks coach Peter Carroll.

Included: An interview with Michaele and Tareq Salahi, alleged White House state-dinner crashers, about controversy surrounding a charity polo event they organize in Washington, D.C. Also: an update on the 2009 shooting of baseball player Robbie Tolan in Bellaire, Texas.

Segments include a feature on Jack Thorpe's quest to move the remains of his father, Jim Thorpe, to a reservation in Oklahoma; a look at sports mascots; and an update on Texas Rangers slugger Josh Hamilton.

Included: a report on funding for the new Florida Marlins stadium; a look at the friendship between Herman Jacobs and Mark Buoniconti, 25 years after a life-changing football injury; an interview with former NFL agent Josh Luchs; and a visit with Denver Nuggets coach George Karl.

Included: a look at the ancient sport of falconry; an interview with Connecticut women's basketball coach Geno Auriemma; a report on hazing on marching bands at historically black colleges in the South. Also: a follow-up visit with Dick Hoyt and his physically-challenged son Rick, who regularly compete in road races and triathlons.

A year-end roundtable in which the correspondents choose their favorite segments from 2010. Topics include the link between brain injuries and the onset of ALS; women's bodybuilding; and young chess players in Texas. Also: profiles of Marc Buoniconti, Pete Carroll and Arturo Gatti.