Rush completed 13 of his 18 pass attempts for 106 yards and a touchdown in Friday's preseason finale against the Dolphins.
One of Tua Tagovailoa or Michael Penix (knee) is set to start Week 1 against the Steelers, but Rush has put consistent tape together as the No. 3 quarterback. Penix is supposedly set to start the regular season, but the quarterback has yet to progress his game availability as the preseason comes to a close. Tagovailoa was accurate in his short stint but fumbled the football early on in the contest, meaning that if Penix is not ready for Week 1 and Tagovailoa fails, Rush could see a fair amount of pass attempts in the early weeks of the regular season.