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Dallas Cowboys rookie quarterback Dak Prescott is having a phenomenal season by almost any measure. How does it compare to other great rookie campaigns?Its difficult to compare quarterbacks from different eras for two primary reasons. First, not all of the official statistics of the modern era were always kept; for example, sacks werent officially recorded until 1982. Second, passing has varied significantly throughout the years, so stats such as the traditional passer rating are fairly meaningless when comparing a player from 2016 to one from 1970.We do have a few common measures of quarterback performance we can rely on to compare passers across eras. Total yards, pass attempts and interceptions can all be boiled down into a stat known as adjusted yards per attempt (AYPA). Yards per attempt is one of the best ways to measure quarterback play because its a rate stat thats highly predictive of winning games. The adjusted part subtracts 45 yards from the yardage total for every interception a quarterback throws before dividing by attempts; the 45-yard adjustment has been shown to be roughly the yardage equivalent of an interception.To remedy the problem of different passing environments across eras, we can compare each quarterbacks AYPA with the league average for that season. For example, Prescotts AYPA is 9.2 so far this season, while the league average is currently 7.2. That means Prescott exceeds the league average by a net of 2.0 AYPA.Only three other rookie quarterbacks in NFL history with as many starts as Prescott have exceeded the league average in AYPA for their respective seasons by more than that. Otto Graham blew the doors off the rest of the league in 1946, averaging 11.2 AYPA when the rest of the league passed at a measly 3.7 AYPA rate. Y.A. Tittle averaged 8.4 AYPA as a rookie in 1948, compared to a league average of 4.6 AYPA. The third quarterback to top Prescott on the list is lesser-known Greg Cook of the Bengals, whose 1969 season beat the league average by 2.6 AYPA. Cooks career was cut tragically short by a chronic shoulder injury.The following is the list of rookie quarterbacks with the best AYPAs when compared to the league average of their respective years:Prescotts passing performance through 10 games outshines the season-adjusted rookie averages of other great first-year quarterbacks Dan Marino, Russell Wilson, Matt Ryan, Jim Plunkett and Ben Roethlisberger. He even beats non-rookie rookies, like Jim Kelley and Warren Moon, who had experience playing in the USFL and CFL respectively. Air Max Wholesale Free Shipping . -- Tony Stewart is 20 pounds lighter and has a titanium rod in his surgically repaired right leg. Air Max Clearance Sale . The players spoke Jan. 13 during a Major League Baseball Players Association conference call after Rodriguez sued the union and Major League Baseball to overturn an arbitrators decision suspending him for the 2014 season and post-season. http://www.airmaxclearance.com/ . Murray beat Sam Querrey 7-6 (5), 6-7 (3), 6-1, 6-3 to clinch Britains opening-round victory against the United States on Sunday at Petco Park. "Im proud of the way Im playing just now, because I had to do a lot of work to get back to where I want to be," Murray said after celebrating with his teammates on the red clay court in a temporary stadium in left field of the downtown home of baseballs San Diego Padres. Cheap Nike Air Max Trainers Sale . According to a report from the Vancouver Province, the Lions are expected to replace former DC Rich Stubler with defensive backs coach Mark Washington. Air Max Wholesale China .C. -- Calgarys Kevin Koe did it the hard way again.Toronto FC reportedly could be on the way to signing an international star as their latest designated player. The Globe and Mail is reporting that Uruguayan forward Diego Forlan could be unveiled as a member of the team as early as this week. The 34-year-old was one of the stars of the 2010 World Cup in South Africa, where he shared the tournament lead for the most goaals scored and was awarded the Golden Ball as best player in the tournament.dddddddddddd Over the course of his career, Forlan has played for Manchester United, Villarreal, Atletico Madrid, Inter Milan and his current club Brazils Internacional. Toronto FC is currently second last in the Eastern Conference sitting ahead of D.C. United for the bottom position. cheap falcons jerseys cheap ravens jerseys cheap bills jerseys cheap bears jerseys cheap bengals jerseys cheap cowboys jerseys cheap lions jerseys cheap texans jerseys cheap colts jerseys cheap jaguars jerseys cheap chiefs jerseys cheap rams jerseys cheap dolphins jerseys cheap vikings jerseys cheap saints jerseys cheap giants jerseys cheap jets jerseys cheap eagles jerseys cheap steelers jerseys cheap 49ers jerseys ' ' '