During training camp when Terrelle Pryor opted to don the number 2, it immediately brought up some bad memories of the last player to wear that number for the Raiders - JaMarcus Russell. Now his name is uttered again for more than just his number.

The initial thought when Pryor chose to go with his former college number was that if anyone could take the stink off that number, it was Pryor. He has all the work ethic Russell never had and as far as playing style, the two couldn't be more different.

Over weeks 3-5 of this season, Pryor looked on his way to putting the stigma of the number two well in the past. He showed great progress in his pocket passing, and showed enough flashes to help lead the Raiders to a win over the Chargers in week 5. But since then, he has had numbers that the Raiders have not seen since the former number two took the field.

Over the past four games, Terrelle Pryor has had a passer rating of 42.0 (45.7, 25.7, 55.7, and 40.9) with 1 passing touchdown to 8 interceptions. The last quarterback to have a four-game stretch that bad was JaMarcus Russell who had a passer rating of 41.2 (47.6, 46.0, 22.6, and 48.5) over the first four games of the 2009 season.

During those four games, Russell threw for just one touchdown to four interceptions. That's half the interceptions Pryor has had over these past four games. And like Pryor's last four games, the Raiders actually won one of those games as well -- 13-10 win over the Chiefs.

Not only is that the worst passer rating over four games since Russell, those two instances were the only ones in nearly 50 years in which a Raiders quarterback had a passer rating that low over a four-game stretch.

To find a worse four-game stretch in a single season by a Raiders quarterback, you have to go back to 1964 - the Raiders' fifth season of existence -- when Tom Flores had a passer rating of 27.8 from the second game of the season thru the fifth. He attempted just 60 passes in those four games, completing 24 passes with no touchdowns to 7 interceptions.