Bortles, who has an injury to his non-throwing (left) shoulder, is still expected to play against the Indianapolis Colts in Week 10, as of now. The Jaguars have a bye week after a 24-18 loss to the Eagles at Wembley Stadium.
He has started 69 consecutive games for the Jaguars, making his first start in Week 4 of his rookie season. He played through ligament damage in his right wrist during the 2016 and 2017 seasons before having surgery last January.
Jones, whom the Jaguars recently had in for a workout, spent the past five seasons with the Pittsburgh Steelers and completed 64 percent of his passes for 1,310 yards and eight touchdowns with seven interceptions.
The Jaguars (3-5) have lost four consecutive games and are in third place in the AFC South.