FLORHAM PARK, N.J. -- Due to injuries, the New York Jets are reaching to the bottom of their quarterback depth chart, tapping rookie Brady Cook to start Sunday against the Jacksonville Jaguars at EverBank Stadium.

It will be the first NFL start for Cook, a former practice squad player who made his debut last week in a 34-10 loss to the Miami Dolphins . He replaced Tyrod Taylor , who lasted only two series because of a groin injury.

Former starter Justin Fields also is injured (knee soreness), leaving the Jets no choice but to use Cook and Adrian Martinez as their two quarterbacks in Jacksonville. Martinez, on the Jets' preseason roster, was added to the practice squad Wednesday after a stint with the San Francisco 49ers .

Cook and Martinez have combined for only 30 caree

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