The first College Football Playoff rankings of the year were released on Tuesday ahead of what could be the most competitive weekend of the college football season to date.
In other words, expect those rankings to change.
Several teams are on upset-alert already with key in-conference matchups against teams that are looking to either steal the spotlight or derail a season.
After two weeks of so-so matchups (some of which turned out to be pretty exciting games), this weekend starts a flurry of weeks where teams try to cut each other down and earn a coveted spot in the Top 4.
Here’s a look at what to watch in Week 10:
Game of the week:
No. 2 LSU at No. 4 Alabama, 8 p.m. ET
This is the seventh time since 2005 that both teams enter the game ranked in the top 10. Alabama can’t afford a loss. Even though it’s No. 4 in the current rankings, a second loss would be enough to knock it from playoff contention. Similarly, LSU is undefeated, but still has games against Bama and Ole Miss before it can claim the SEC West crown and guarantee itself a spot in the Top 4.
No game this weekend will have a bigger effect on the College Football Playoff rankings than this one.
"The good news is we've played these games before and we certainly understand them," LSU coach Les Miles said this week. "A big game is only so big, right? You're playing for all the things you wanted to play for at the beginning of the year. You're playing for the lead in the West. And you've put yourself, with your achievements, this team, in position to do so. They should look forward to it. They should relish it.
"It's why you come to LSU, to be a part of this game."
This game also will have implications on the Heisman race. LSU running back Leonard Fournette is the frontrunner for the bronze statue, but has faced only one quality defense this season, Fournette hasn’t rushed for fewer than 150 yards in any contest this year, but Alabama is allowing less than 80 yards rushing per game.
On the other side, Derrick Henry has 1,044 yards and 14 touchdowns this season. In his past two games against Texas A&M and Tennessee, Henry has rushed for 339 yards and four touchdowns.
There is no doubt this is the game of the week and one that shouldn't be missed.
Game to Watch:
No. 16 Florida State at No. 1 Clemson, 3:30 p.m. ET
Clemson has a lot riding on this game against the Seminoles this weekend. Not only are the Tigers trying to hold on to the No. 1 spot, they’re also trying to lock up the ACC Atlantic Division title and a spot in the ACC title game.
Florida State knows this position all too well. In 2013, the last time the Tigers started the season undefeated, the Seminoles rolled into Death Valley and walked out with a 51-14 win. It marked the most points any opponent had scored in Clemson’s stadium. The Seminoles went on to win the national title that year.
Now it’s Clemson’s turn.
For the sixth time in a row, this game will determine the winner of the division. If Clemson wins, the Tigers will have a two game lead on all its division opponents. If Florida State wins, both the Seminoles and Tigers have one loss and FSU holds the tiebreaker. Not to mention it would likely punt the Tigers out of the top 4 of the College Football Playoff rankings.
Clemson hasn’t beaten the Seminoles since 2011, but Clemson hasn’t been this good in the last three seasons either. Much of that is because of the emergence of quarterback Deshaun Watson, who is a Heisman hopeful completing 70 percent of his passes for 1,936 yards, 20 touchdowns and seven interceptions. He also has 386 rushing yards and four scores.
Florida State will have quarterback Everett Golson and star running back Dalvin Cook back this week after both missed last week’s game against Syracuse because of injury.
Also check out…
No. 8 TCU at No. 14 Oklahoma State, 3:30 p.m. ET
For all intents and purposes, the Big 12 schedule for both of these teams begins this weekend.
Both TCU and Oklahoma State are undefeated in conference play, but neither team has played the upper echelon of the conference and the whittling down to the best of the best begins with this contest.
Both of these offenses have put up ridiculous numbers this season. Oklahoma State has scored 128 points in its last two contests while TCU is averaging 48.9 points per game.
However, defense has been a totally different story. Neither team plays a lot of defense — the story of the Big 12 as a whole — but TCU’s appears to be getting better after sustaining several key injuries and having to use 17 first-time starters to help get the team through the first half of the season. After limiting West Virginia to 10 points last weekend, the Horned Frogs’ defense might be peaking at the right time, though it still has to contend with a Cowboys’ offense that scored 70 points against Texas Tech last weekend.
Still don’t expect too much defense in this one. Oklahoma State has won two of the last three meetings between these teams, but the Horned Frogs 42-9 win against the Oklahoma State a year ago started the Cowboys on a five-game losing streak.
Channel surf through…
Navy at Memphis, 7 p.m. ET: One Group of 5 undefeated has already gone down this week, could the Tigers be next? Memphis was the highest ranked of all the Group of 5 teams and could move into the top 10 if they win and some key teams lose. But Navy is not an easy foe and Memphis will have to play perhaps its best game of the season to get past the Midshipmen and remain undefeated.
Duke at North Carolina, noon ET: Duke is coming off a controversial loss to Miami, but it still has a chance to claim its spot atop the ACC Coastal Division. North Carolina is undefeated in conference play, but a loss against the Blue Devils would level the playing field. A win, and the Tar Heels pretty much have their ticket to the ACC title game punched.
No. 5 Notre Dame at Pittsburgh, noon ET: Notre Dame is within a sniff of the College Football Playoff Top 4, but getting by Pitt won’t be an easy feat especially after an emotional win against Temple last week. The Panthers are coming off a tough loss to North Carolina, but could still pull off the upset, especially at home.
No. 12 Utah at Washington, 7:30 p.m. ET: For the second time this season, Utah is the underdog against an unranked conference opponent and so far the Utes are 0-1 in those games. Washington has been tough defensively this season, especially against the run, which is Utah's bread and butter offense. This could easily be a trap game for the Utes, which are narrowly holding on to their Pac-12 South lead.
Want to hear all of Dr. Saturday's thoughts on Week 9? Check out the Dr. Saturday Podcast:
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Graham Watson is the editor of Dr. Saturday on Yahoo Sports. Have a tip? Email her at dr.saturday@ymail.com or follow her on Twitter! Follow @YahooDrSaturday
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