Pasztor injured his hamstring in Sunday's 25-24 win over the New York Giants. Undrafted rookie Josh Wells replaced him. The Jaguars (2-10) aren't certain Pasztor will end up injured reserve, but that's the most likely scenario.
Pasztor missed the first four games while recovering from a broken right hand. His return helped bolster a unit that featured two rookies and second-year left tackle Luke Joeckel. Pasztor started 12 games in 2013.
Nonetheless, the Jaguars have struggled most of the year to create holes in the running game and protect quarterback Blake Bortles.
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