Jones completed one of his five pass attempts for seven yards in Thursday night's preseason finale against the Raiders.
Jones played just eight offensive snaps in the contest, marking a quick end to the preseason for the veteran backup. Despite the poor outing, Jones is still the most likely No. 2 option at quarterback behind starter Brock Purdy. With Kurtis Rourke (ribs) dealing with an injury, Adrian Martinez will likely fill out the QB room as the team heads into Sunday's cutdown day.