Here’s our weekly look at the SEC quarterbacks with most difficult assignments on Saturday.

TREON HARRIS, FLORIDA

Opponent: at No. 6 LSU

Off to their best start since 2012’s Sugar Bowl run, the Gators are faced with the unappetizing prospect of trying to move to 7-0 and maintain their spot in the SEC East driver’s seat without their starting quarterback.

So, in steps Harris. On the road. In Death Valley. At night. Against an also-unbeaten LSU team. That features a loaded secondary. That’s likely getting one of its best players back for the first time this season.

That’s a tall task for any quarterback, much less one that hasn’t thrown a pass in over a month.

During his year and a half with Florida, Harris has defined mercurial. In limited action this season he’s looked pretty sharp, but that was primarily against New Mexico State and Eastern Carolina. The defense he’ll see and the environment surrounding him will be much less hospitable Saturday night.

KYLE ALLEN, TEXAS A&M

Opponent: vs. No. 10 Alabama

Kyle Allen has been excellent for the Aggies so far in his sophomore season. He leads the conference in passer efficiency and has arguably gotten better with each passing week. His lowest completion percentage and yards per attempt this year came in the season opener against Arizona State, and in his last two games he’s thrown for 680 yards, four touchdowns and no interceptions.

But Alabama remains the measuring stick, even if the Tide isn’t the division frontrunner at this point in the season.

While Alabama’s defense has been vulnerable in recent years against spread schemes and gave up 43 points to Ole Miss earlier this year, it’s not as if the Rebels methodically picked the Tide apart. Chad Kelly was under duress for much of the game, but played with admirable poise, made clutch plays, and benefited from some good fortune. Allen will need the same combination of skill and luck if the Aggies are to earn their signature win of the season against an Alabama team that yields just 187 yards per game through the air and leads the conference in total defense.

GREYSON LAMBERT, GEORGIA

Opponent: vs. Missouri

At times this year, Lambert has looked like the kind of quarterback who could lead the Bulldogs to the glory they were hoping for when they opened the season as the prohibitive favorite to win the East. At others, he’s looked like a guy who got beat out for the starting job at a second-tier ACC school.

After back-to-back losses in which he completed a combined 25 of 56 passes, the run of excellence that extended from the second half of the Vanderbilt game to the blowout of Southern is already a distant memory of what might’ve been.

This week Georgia welcomes Missouri to Athens, and for all the defending division champs’ struggles to move the ball this season, the Tigers’ defense has been typically stingy. Though just 1-2 in SEC play, Missouri hasn’t given up more than 21 points in any game this year, and leads the conference in scoring defense, passing defense and tackles for loss.

Even without Nick Chubb, the Bulldogs have a dynamic running game to lean on. But to salvage a promising season and avoid their first three-game losing streak since 2010, Georgia will likely need Lambert to play less like Virginia’s backup, and more like a quarterback capable of the SEC storm he finds himself in.