For years, there have been two major "curses" that all sports fans know about.
The first is the SI Jinx. Players who appear on the cover of Sports Illustrated are said to do worse after they appear. This has been going on for years, and two of the most recent issues helped the jinx continue.
On the January 8 issue, Aaron Rodgers was on the cover. The next week, Rodgers and his Green Bay Packers looked rusty and lost to the New York Giants, 37-20. Then, in the January 22 issue, the San Francisco 49ers appeared on the cover. San Francisco had a very poor offensive outing, which led to a 20-17 overtime loss, also to the New York Giants.
The Madden Curse is well documented as well. Year after year, it seems that if a player is on the cover of EA Sports' popular Madden game, they have a down season or injury. For example, Browns RB Peyton Hillis won a fan vote to be on the cover of Madden '12, and he followed up his stellar 2010 campaign with an awful 2011 season. Hillis was out for six games, including one when he had strep throat. This curse has gotten certain teams' fans to not vote for their players to be on the cover of Madden '13, in fear of that player getting injured.
However, those aren't the only two sports curses. Another curse that has begun can be called "The Super Bowl Host Curse." For the past few years, nearly every starting quarterback of the team that is hosting the Super Bowl that year has gotten injured.
This year the Super Bowl is in Indianapolis, and Colts starting QB Peyton Manning has missed the entire season. Last season, the Super Bowl has held in Cowboys Stadium, and Dallas QB Tony Romo broke has left clavicle in Week 6, which landed him on the IR. The year before that, Miami hosted the Super Bowl, and their QB, Chad Pennington injured his shoulder and was put on the IR.
So when does something turn from a "coincidence" to a "curse"? I'm not sure, but regardless, let's hope this ends and Super Bowl XLVII home quarterback Drew Brees has a healthy and productive 2012-2013 season.