LATROBE _ Ben Roethlisberger started strong in "Seven Shots" but ended up leaving Tuesday's practice early after sustaining a hit during the drill.
The Steelers' quarterback wasn't helped from the field after rolling over onto his back and then getting to his feet.
He eventually walked to the area where the Steelers' buses were parked unescorted and under his own power.
Following practice head coach Mike Tomlin issued the following statement, "Ben Roethlisberger sustained a hit today in practice. He is being evaluated by team doctors as part of the concussion protocol."
Roethlisberger's fourth and customarily his final rep in the practice-opening, two-point conversion/short-yardage drill was a quick fade into the corner of the end zone for wide receiver JuJu Smith-Schuster.
The pass was caught for a conversion/touchdown but Roethlisberger remained down after the play's completion.
After regaining his feet Roethlisberger took a seat on a water cooler for a few minutes and briefly rubbed his head with his right hand before leaving the field.
Among those checking on his condition were head athletic trainer John Norwig, General Manager Kevin Colbert, injured guard Ramon Foster and special teams coordinator Danny Smith.
Roethlisberger had found Smith-Schuster and wide receiver Antonio Brown in the end zone on the first two reps of "Seven Shots."
Roethlisberger tossed a towel that had been wrapped around his shoulders to a fan as he exited the stadium.
ANOTHER CURVE BALL: Wet conditions at Saint Vincent College made it necessary for the final practice of camp to be moved to Memorial Stadium, the site for the Steelers' annual "Friday Night Lights" appearance.
This time, it was "Tuesday Afternoon Finale" in terms of performing for the public.
"We've been challenged in some ways, weather and so forth," Tomlin acknowledged. "That can represent the journey that is a football season. From time to time you're going to be challenged with things that are outside your control.
"How you adjust, how you pivot, how you navigate those things often times define you."
MEDICAL FILE: Safety Sean Davis (groin), running back Stevan Ridley (undisclosed), safety Marcus Allen (undisclosed), outside linebacker Anthony Chickillo (undisclosed), guard Ramon Foster (knee), tight end Xavier Grimble (wrist), tight end Vance McDonald (foot) and outside linebacker T.J. Watt (hamstring) were among those who didn't take part in 11-on-11 work.
Brown participated in "Seven Shots" but was a spectator for the first 11-on-11 period.
Watt and Grimble did some running on the sideline.
Smith-Schuster, running back James Conner, outside linebacker Bud Dupree and defensive end Stephon Tuitt were among those who returned to practice.
EXTRA POINTS: The offense won, 5-2, in "Seven Shots." In addition to Roethlisberger's three conversion/scoring passes, the offense won a rep when outside linebacker Keion Adams jumped offside. Quarterback Landry Jones found tight end Pharoah McKever in the end zone and threw incomplete for wide receiver James Washington and McKever … The Steelers were back in shoulder pads and the defense put them to good use. Running backs James Summers and Jarvion Franklin were knocked to the ground in a non-tackling, 11-on-11 drill.