Updated

Pittsburgh Steelers rookie wide receiver Markus Wheaton will have to be a quick study if he wants to make an impact during training camp.

The third-round draft pick missed minicamp and organized team activities due to NCAA rules, though he did work out with quarterback Ben Roethlisberger in the weeks leading up to camp. The Steelers hope Wheaton can develop into the kind of deep threat they lost when Mike Wallace left for Miami in free agency.

Wheaton says he's just trying to make the team, a given barring a setback. Pittsburgh will need more production out of its receivers this season with tight end Heath Miller on the Physically Unable to Perform list with a left knee injury.

Miller said Saturday he still has no timetable for his return.