This is a countdown of the top 10 great college football rivalries that were once a regular occurrence, but aren't anymore and would be fun to see return. These matchups we miss most were selected by the staff of College Football 24/7 (follow on Twitter @NFL_CFB).

(Associated Press)

First game: 1894
Last game: 2008
Total games: 77
Series record: Texas leads, 56-21

(Associated Press)

First game: 1938
Last game: 2013
Total games: 55
Series record: Miami (Fla.) leads, 29-26
Trophy: Florida Cup, formerly the Seminole War Canoe
Note: While the two teams did play in the 2013 season, no more games in this series are scheduled in the near future.

(AP Photo/J Pat Carter)

First game: 1895
Last game: 2011
Total games: 104
Series record: Pittsburgh leads, 61�40�3
Nickname: Backyard Brawl

(AP Photo/Jeff Gentner)

First game: 1893
Last game: 2000
Total games: 96
Series record: Penn State leads, 48-42-4

(AP Photo/Paul Vathis)

First game: 1891
Last game: 2011
Total games: 120
Series record: Missouri leads, 57-54-9
Nickname: Border War

(AP Photo/L.G. Patterson)

First game: 1894
Last game: 2011
Total games: 118
Series record: Texas leads, 76-37-5

(AP Photo/David J. Phillip)

First game: 1912
Last game: 2010
Total games: 86
Series record: Oklahoma leads, 45-38-3

(AP Photo/Tony Gutierrez)