It might be too early to read into the Bills' quarterback rotation at training camp, but there were two notable developments on the "rep chart" during the fourth day of practices at St. John Fisher College.
AJ McCarron took all of the snaps with the first team during 11-on-11 drills Sunday, while rookie Josh Allen worked exclusively with the third team after getting first-team reps on each of the first three days of camp.
Nathan Peterman received all of his reps with the second team, flipping roles with McCarron from Saturday.
In his detailed quarterback watch report, Jay Skurski notes that Allen "got off to a tough start, then rebounded during the second session."
For more insight on McCarron's quest to win the starting job, check out Skurski's two-part series on the former Alabama star:
Taron Johnson trying to erase fourth-round history: Not since Nigel Bradham in 2012 has a player chosen in the fourth round become a contributing starter in Buffalo, Skurski writes. But Johnson, the nickel cornerback from Weber State, has been practicing with the starters early in training camp.
Adolphus Washington looks to make an impact: While the former third-round pick split between defensive tackle spots last year, Washington is primarily focused on playing at the three-technique this season, Jack Goods reports.
Defensive line shuffle: The Bills signed defensive end Ryan Russell and released Owa Odighizuwa. Russell, 27, played in 14 games for Tampa Bay last season, making seven starts. He was originally a fifth-round draft pick of Dallas in 2015.
Day 4 notes: The first skirmish of training camp and the latest on the starting center battle.
This week's schedule: The Bills are off today before resuming practice at 8:45 a.m. Tuesday. That session is closed to the public. The team will also practice Wednesday and Thursday morning at St. John Fisher ahead of Friday night's Return of the Blue & Red at New Era Field.
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