The players who wore number 7 were Brian Robson, Eric Cantona, David Beckham, Christiano Ronaldo.
Mantle wore #7, DiMaggio wore #5.
Bastian Schwinstiger , that's all i remember
Denver Broncos wearing #7. Craig Morton, and John Elway
The most famous was Mickey Mantle. http://hawk4thehall.blogspot.com/
There has been 238 players who wore the number 7 in the NBA and ABA at one point, some notable current players are: Andrea Bargnani, Chauncey Billups, Ben Gordon, Shawn Marion, Jermaine O'Neal, Lamar Odom, Brandon Roy.
Many players have worn number "7". One of the more famous "7"s was Mickey Mantle of the Yankees.
Steve Rodriguez Rico wore no. 6. Steve Rodriguez is right. Here's a list of who wore every number: http://www.redsoxdiehard.com/players/unifnums.html