One punch from former Jets defensive lineman IK Enemkpali not only broke Geno Smith's jaw, but scrambled the quarterback situation irrevocably for the 2015 season. So tonight's final preseason game against the Eagles at MetLife Stadium hardly is meaningless because it's critical to determine the pecking order for the backup quarterback role behind new starter Ryan Fitzpatrick.

Jets coach Todd Bowles indicated earlier that Matt Flynn, who was signed Aug. 19 after being waived by the Patriots, and Josh Johnson, who was signed last Thursday after being waived by the Bengals, will take the majority of snaps. Bryce Petty, a fourth-round draft pick out of Baylor, has shown what he can do and likely will be limited to a few snaps, if he plays at all.

Flynn last played in a mop-up role with Green Bay last season before signing with New England, where hamstring and ankle injuries led to him being waived without playing. But he practiced fully this week.

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"I feel like I've picked it up so far very well," Flynn said of offensive coordinator Chan Gailey's system. "There's a difference, though, in knowing it in the classroom and knowing it on the field. There's some cobwebs and rust that needs to be knocked off. There's different nuances in this offense that I haven't had before in other offenses."

Johnson said he will lean heavily on the quarterbacks who are more familiar with Gailey's offensive scheme.