Ahead of the Jets Week 14 game against the Dolphins, HC Aaron Glenn said rookie QB Brady Cook will serve as backup to Tyrod Taylor as Justin Fields deals with a knee injury sustained in practice this week.

"He's a very fiery guy," Glenn said of Cook. "The one thing that we do quite a bit in practice is we have a number of competition periods. And you see exactly how he goes about his business when his time comes up to be in that situation to compete. … He's going to be a quarterback in this league. I do know that. I can't tell you when, but he will be a quarterback in this league."

Cook, an undrafted free agent out of Missouri, also was the team's backup against the Buccaneers in Week 3 and the Bengals in Week 8.

"To play quarterback, you have to be competitive," Cook said. "That

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