Tuesday was only the first of six release days for the College Football Playoff rankings. There is still plenty of time for teams to make or break their playoff hopes.

LSU is not done yet.

Nebraska? Going after the seemingly vulnerable Buckeyes.

Week 10 features just two games between ranked teams, but they will have major playoff implications in the SEC and Big Ten. Here's a look at what's at stake for all four teams in the games with the biggest impact:

Alabama at LSU

If Alabama wins: Alabama can knock LSU out of the conversation for good and further assert itself as the best team in the SEC and the country with another road win against a ranked division opponent. ESPN's Football Power Index projects that if the Tide win on Saturday, their chances of winning the SEC increase to 74 percent. The FPI favors Alabama to win each of its four remaining games but shows this one will be the most difficult, with a 65.5 percent chance to win.

If LSU wins: Hello, chaos. LSU would own a head-to-head tiebreaker over the defending national champs but would still have to win out and need Auburn to lose again. Winning out will be tough, with a road trip to Texas A&M on Thanksgiving -- just five days after playing the rescheduled Florida game -- but it's possible Auburn could lose to Alabama in the Iron Bowl. ESPN's FPI gives Auburn a 23.3 percent chance to beat the Tide. The more likely scenario is Alabama wins out and LSU loses again, leaving the Tide right where they started -- at the top of the SEC. Another possibility is Alabama loses a second time and Texas A&M wins out -- leaving the Aggies atop the West. See? Chaos.

Nebraska at Ohio State (8 p.m. ET, ABC)

If Nebraska wins: The two-loss Buckeyes likely would be doomed in the playoff picture, while the Huskers' stock -- and their chances of winning the West division -- would both increase. According to the FPI, Nebraska has a 25 percent chance to win the West, but if it can beat Ohio State, that will rise to 56 percent. This is the second of back-to-back road games against ranked opponents for Nebraska, after losing last week to Wisconsin. This is the kind of statement win that would catch the committee's attention, and Nebraska needs it. So far its only road wins have come against unranked Northwestern and Indiana.

If Ohio State wins: The Buckeyes will keep their playoff hopes alive and continue staring down what should be a season-defining home game on Nov. 26 against Michigan to determine the East winner. Nebraska will drop into a two-loss tie with Wisconsin in the West, and the Badgers will hold the tiebreaker by virtue of their victory Saturday over the Huskers. Nebraska's only hope if it loses would be for Wisconsin to lose again, but the Badgers are favored by the FPI to win each of their four remaining games against unranked opponents. With four Power 5 undefeated teams remaining and a strong collection of one-loss teams for the committee to choose from, Ohio State can't afford to slip up at home on Saturday. One more scenario to consider: Penn State still can win the East if it wins out and Michigan loses twice.

Playoff picture

Texas A&M at Mississippi State: The Aggies are on the bubble, and they are favored by the FPI to win each of their remaining games. This is their last road test of the season, and if they can win out, they will stay in the debate.

Vanderbilt at Auburn: The Tigers have won five straight and played their way back into the conference title conversation. They have to win out, and hope Texas A&M stumbles again.

Louisville at Boston College: After close wins against Duke and Virginia, Louisville can't afford another nail-biter against an unranked 4-4 team. It's time for the Cards to earn some style points.

Wisconsin at Northwestern: The Badgers are in must-win mode from here on out. Last week's important win over Nebraska won't amount to anything if Wisconsin loses a third league game.

Maryland at Michigan: Hey look, another home game! This will be the Wolverines' seventh game in Ann Arbor, and another one against an unranked opponent likely won't move the committee much.

Syracuse at Clemson: Clemson is coming off a critical, emotional win at Florida State, and this could be closer than some might expect. Syracuse is coming off back-to-back wins and had a bye week to prepare.

Florida at Arkansas: The Gators have a clear path to winning the SEC East, especially now that Tennessee has collapsed with three losses, but this is a must-win. The only team the Gators have beaten on the road is Vandy, and they still have to play at LSU on Nov. 19. If Florida loses at Arkansas and at LSU, Kentucky or a three-loss Tennessee will win the East. That's cringe-worthy.

Washington at Cal: The Huskies have played the easiest nonconference schedule in the FBS, which is why road wins are critical to impress the committee. They got a big one last week against Utah, but they can't afford to slip up against a team that is 2-3 in league play.

Superlatives

Player in the spotlight: LSU running back Leonard Fournette. Fournette has come back from an ankle injury this season and is coming off a school-record 284 rushing yards against Ole Miss. Last year, though, Alabama held Fournette to a season-low 31 yards on 19 carries, and he was hit at or behind the line of scrimmage 11 times. He -- and his offensive line -- will be challenged again, as Alabama's run defense is No. 1 in yards per rush and rushing touchdowns allowed.

Matchup to watch: Nebraska quarterback Tommy Armstrong Jr. versus Ohio State's secondary. Armstrong has thrown 11 touchdowns and seven interceptions this season. The Buckeyes are fourth in turnover margin (plus-1.25 per game), third in pass efficiency defense (93.5) and ninth in passing yards allowed (171.1). Sophomore safety Malik Hooker is tied for 11th nationally with four interceptions.

Upset watch: Florida at Arkansas. Arkansas quarterback Austin Allen is expected to return from a knee injury, and he needs to be healthy in order for a chance at the upset. The Razorbacks had a bye week to recover from their embarrassing 56-3 loss to Auburn, and they now have back-to-back home games to reset.

Can-miss game: Tennessee Tech at Tennessee. It's not even that Tennessee Tech is a 3-5 FCS team -- it's that the Vols have lost three straight, star running back Jalen Hurd has decided to transfer and "Rocky Flop" is the trendy nickname.

Don't forget about: Kentucky. If the Wildcats win out -- and Florida loses twice (think at Arkansas and at LSU) -- then Kentucky wins the East. Repeat: Kentucky can win the East. The Wildcats host Georgia on Saturday and then finish their SEC schedule on Nov. 12 at Tennessee.

Under-the-radar game: Air Force at Army. With a win, Air Force clinches the Commander-in-Chief's Trophy for the fourth time in the past seven seasons. If Army wins, the Black Knights would have a chance to clinch the trophy against Navy on Dec. 10. Army hasn't won the trophy since 1996.

Hold that thought: Don't hand Clemson the Atlantic Division title just yet. Clemson can clinch it on Saturday if it beats Syracuse and both Louisville and Wake Forest lose.