Quarterback Aaron Rodgers only officially joined the Pittsburgh Steelers shortly before their three-day mandatory minicamp in June and, thus, is still learning about his new teammates in the early days of training camp.

LATROBE, Pa. — Aaron Rodgers has a well-documented suspicious streak, and at some point this past spring — during one of many conversations exploring a potential partnership — the four-time MVP wondered how Mike Tomlin’s recall could be so acutely accurate? Is he taking notes? Rodgers wondered.

While the quarterback duel defines the Pittsburgh Steelers' Week 1 matchup, there is another battle to monitor.