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Andy Wittry | | January 8, 2019

Undefeated college football teams in 2018

Clemson rolls Alabama for the CFP national title

Clemson defeated Alabama in the 2019 College Football Playoff national championship to finish the season 15-0 and as the only unbeaten team in the 2018 college football season. Alabama and Clemson each entered the championship game 14-0, but only the Tigers left the season without a loss and with a new trophy to bring home.

Notre Dame and UCF were the other two undefeated teams entering bowl season. Notre Dame lost to Clemson in the College Football Playoff semifinals in the Cotton Bowl. UCF lost to LSU in the Fiesta Bowl.

COLLEGE FOOTBALL PLAYOFF:  Clemson beats Alabama for second championship in three seasons

No. 2 Clemson (15-0)

In the end, Clemson was the best team. The Tigers knocked off Alabama in impressive fashion, 44-16, to become the only team to finish the season undefeated in the College Football Playoff era so far. Clemson won its second national championship in three seasons and avenged last season's semifinal loss to Alabama in the process.

With freshman quarterback Trevor Lawrence back in 2019, the Tigers will be the team to beat next season.

Clemson's Trevor Lawrence leads college football AP preseason All-America team

Clemson quarterback Trevor Lawrence hopes to continue his success from last year as he leads the AP preseason All-America team as a first-team selection. Running back Travis Etienne and linebacker Isaiah Simmons were also first-team selections from Clemson.

College football rankings: Preseason Top 25 for the 2019 season

The 2019 college football season isn't far away. Here are the AP Poll and Coaches Poll Top 25 for the preseason.

College football rankings: Here is who has been No. 1 in the AP preseason poll most often and how they finished

The 2018 defending champion Clemson Tigers were announced as preseason No. 1 in the first AP Top 25 of the new 2019 season. The last team to start and end the season at No. 1 was the 2017 Alabama Crimson Tide.

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