PITTSBURGH (AP) — Pittsburgh quarterback Russell Wilson’s calf injury is improving, but Justin Fields will get the start when the Steelers host the Dallas Cowboys in Week 5. Coach Mike Tomlin says he expects Wilson to take on a heavier load in practice as he recovers from a calf issue he aggravated just before the season opener. Tomlin says the 35-year-old Wilson will need to show he has full mobility before being given “serious consideration” to return. Fields has played well over the first month and had 367 yards of total offense in a Week 4 loss to Indianapolis.