Manning vs. Manning II

Less than two weeks after Super Bowl XLII, N.Y. Giants quarterback Eli Manning is already picking up ground on older brother Peyton, Indianapolis Colts QB, at least in terms of jersey sales.

Merchandise sales is a big revenue line for the National Football League, and jersey sales make up the biggest slice of that pie. The league sells more than 4 million jerseys annually, bringing in an estimated $350 million. The top 20 best selling NFL jerseys from April 1 to Feb. 8 on NFLShop.com, a key indicator of overall sales, are listed below. Eli recently jumped into the top 20 at No. 7, while Peyton is holding his own at No. 4. Sports business experts think Eli could overtake Peyton this summer. Colts defensive back Bob Sanders is one of only four defensive players to make the top 20.

1. Tony Romo, Dallas Cowboys

2. Tom Brady, New England Patriots

3. Brett Favre, Green Bay Packers

4. Peyton Manning, Indianapolis Colts

5. LaDainian Tomlinson, San Diego Chargers

6. Adrian Peterson, Minnesota Vikings

7. Eli Manning, New York Giants

8. Randy Moss, New England Patriots

9. Brian Urlacher, Chicago Bears

10. Troy Polamalu, Pittsburgh Steelers

11. Devin Hester, Chicago Bears

12. Marion Barber, Dallas Cowboys

13. Reggie Bush, New Orleans Saints

14. Ben Roethlisberger, Pittsburgh Steelers

15. Terrell Owens, Dallas Cowboys

16. Jason Witten, Dallas Cowboys

17. Brady Quinn, Cleveland Browns

18. Sean Taylor, Washington Redskins

19. Brian Westbrook, Philadelphia Eagles

20. Bob Sanders, Indianapolis Colts

So, will Eli overtake Peyton? And what is Brady Quinn doing on this list?