Now that the Denver Broncos have quarterbacks who are cleared to play, their matchup with the Kansas City Chiefs on "Sunday Night Football" is now more viable. This rivalry, which dates back to the beginning of the AFL, is now in its 61st year and has produced so many memorable moments. Here are the top five.
5. Biggest Beatdown in Broncos History
Kansas City Chiefs 59, Denver Broncos 7
Sept. 7, 1963 — Denver
The Chiefs won 19 of the first 20 games in this series and the worst was this whipping they gave the Broncos in the season opener. Kansas City quarterback Len Dawson threw four touchdown passes as the Chiefs handed Denver its worst defeat in franchise history.
4. Bradley Roby Returns a Fumble for the Win
Denver Broncos 31, Kansas City Chiefs 24
Sept. 17, 2015 — Kansas City, Mo.
The Chiefs led 24-17 with 2:27 remaining, but Peyton Manning orchestrated an 80-yard drive that ended with a 19-yard touchdown pass to Emmanuel Sanders to tie the game with 36 seconds left. On the ensuing drive, the Broncos ended any hopes of overtime when linebacker Brandon Marshall forced Jamaal Charles to fumble and Bradley Roby picked it up and raced to the end zone for the win.
3. John Elway and Joe Montana Shoot it Out
Kansas City Chiefs 31, Denver Broncos 28
Oct. 17, 1994 — Denver
The two Hall of Fame quarterbacks squared off on "Monday Night Football" and matched each other score-for-score. Elway appeared to have the final say when he scored on a four-yard quarterback draw to put the Broncos up 28-24 with 1:29 left in the game. Then Montana responded with a drive that culminated in a five-yard touchdown pass to Willie Davis with eight seconds remaining to win the game. This was the last time these two greats played against each other.
2. The Playoff Upset
Kansas City Chiefs 14, Denver Broncos 10 (1997 AFC Divisional Round Playoff)
Jan. 4, 1998 — Kansas City, Mo.
The Chiefs and Broncos split their regular-season matchups and Kansas City won the division with a 13-3 record. Denver finished 12-4 and earned a wild-card berth and the two teams met in the Divisional Round for their only playoff meeting. The Broncos won the rubber match, pulling ahead in the fourth quarter with a one-yard Terrell Davis touchdown run en route to winning their first Super Bowl.
1. Steve Atwater Knocks Down Christian Okoye
Denver Broncos 24, Kansas City Chiefs 23
Sept. 17, 1990 — Denver
The 250-pound Okoye plowed through defenses during his six seasons in the NFL. That is why Atwater's hit on him was so memorable. All of the other moments on this list were memorable, but this is the only one that made the NFL's "100 Greatest Plays." Oh, and the Broncos won on a 22-yard field goal by David Treadwell as time expired.
— Written by Aaron Tallent, who is part of the Athlon Contributor Network. Tallent is a writer whose articles have appeared in The Sweet Science, FOX Sports' Outkick the Coverage, Liberty Island and The Washington Post. Follow him on Twitter at @AaronTallent.
(Top photo by Ric Tapia, courtesy of denverbroncos.com)