The BCS rankings proved controversial, particularly in 2003, when No. 3 Oklahoma was chosen over the top-ranked team, USC, to play in the title game, NCAA officials said. That season ended with split national champions: the LSU Tigers, who won the BCS title, and the USC Trojans, who were named the champions by the Associated Press.
The final BCS championship game was played in 2013, replaced the following year by the College Football Playoffs, in which a four-team tournament was established to determine the national champion.
The Bulldogs earned their spot in the title game by defeating the Oklahoma Sooners 54 to 48 in the Rose Bowl on New Year’s Day. Their win came after the game went into double overtime.
The Crimson Tide, who last won the title in 2015, earned their spot in the big game with a 24 to 6 win over the Clemson Tigers, who were the national champs in 2016.