Executives at Electronic Arts might one day find it challenging to get an NFL player to pose on the cover for its Madden game. Chalk up another one to the "Madden curse," now that Philadelphia Eagles quarterback Donovan McNabb has elected to have surgery to repair his sports hernia and is expected to miss the rest of the season. After the video game company announced in June that McNabb would be on the cover, the quarterback told ESPN.com that the cover athletes getting hurt "might be a trend, but I don't believe in the curse at all." But just look...