Here’s our weekly look at the SEC quarterbacks with most difficult assignments this weekend:

TO BE DETERMINED, AUBURN

Opponent: vs. No. 2 Alabama

The quarterback position at Auburn is back up for grabs, with coach Gus Malzahn saying Monday he hopes to name a starter by the end of the week. Jeremy Johnson, who began the season as the starter and an All-SEC candidate, has started the last three games while redshirt freshman Sean White has dealt with a knee injury.

Regardless of who gets the call, facing this year’s Alabama defense is a tough draw. The Tide rank sixth in the country in pass defense efficiency and third in sacks—and first in the conference in both categories—while shutting down the run equally well.

BRANDON HARRIS, LSU

Opponent: vs. Texas A&M

It’s difficult to know what the environment in Tiger Stadium will be like on Saturday with LSU in the midst of its first three-game losing streak since 1999. Will fans rally in support of their beleaguered team? Will the disappointments of the last month spill over into toxic negativity at the first hint of adversity? Maybe worst of all, will the crowd be apathetic?

The season has rapidly come undone for LSU and now the team is widely believed to be playing with its head coach’s job on the line. That’s a tremendous amount of pressure on the shoulders of a quarterback who was teenager six weeks ago. Add to the mix the Aggies’ improvement in pass defense since the arrival of John Chavis—LSU defensive coordinator last year—and the demands on Harris will be high Saturday.

BRANDON ALLEN, ARKANSAS

Opponent: vs. Missouri

Allen has been one of the nation’s top quarterbacks over the last half of the season, but this weekend will face his toughest task since a loss to Alabama in early October. Missouri has one of the league’s best defenses across the board and will come into Fayetteville on Friday afternoon with ample motivation.

Coach Gary Pinkel, who has been diagnosed with non-Hodgkin Lymphoma, will be stepping down at season’s end. Following an emotional night last week as Missouri lost to Tennessee in Pinkel’s final home game, the Tigers would love nothing better than to send their coach out a winner and grab bowl eligibility in the process at Arkansas.