The notoriously indignant John McEnroe won 77 singles titles in his career, including seven Grand Slams. Together with doubles and mixed doubles titles, McEnroe won 17 Grand Slam tournaments. He recorded arguably the greatest season in tennis history in 1984, when he won 96.47 percent of his matches, including Wimbledon and U.S. Open titles. (Walter Iooss Jr.(3), Steve Powell(2), Manny Millan/SI)
GALLERY: Top 20 Athletes with Irish Connections

The notoriously indignant John McEnroe won 77 singles titles in his career, including seven Grand Slams. Together with doubles and mixed doubles titles, McEnroe won 17 Grand Slam tournaments. He recorded arguably the greatest season in tennis history in 1984, when he won 96.47 percent of his matches, including Wimbledon and U.S. Open titles. (Walter Iooss Jr.(3), Steve Powell(2), Manny Millan/SI)

GALLERY: Top 20 Athletes with Irish Connections

It’s college football season and SI has five regional covers to preview the upcoming season. Among those featured are Michigan’s Denard Robinson, Oklahoma’s Landry Jones, USC’s Matt Barkley, West Virginia’s Geno Smith and Alabama’s AJ McCarron. (Lon Horwedel/Icon SMI - Michigan; Matthew Emmons/US Presswire - Oklahoma; Peter Read Miller/SI - USC; Andrew Weber/US Presswire - WVU; Damian Strohmeyer/SI - Alabama) 

SI STAFF: 2012 College Football Preview Index

This week’s Sports Illustrated features Jabari Parker, a 6-foot-9 junior from Chicago’s Simeon Career Academy who SI proclaims to be the best high school basketball player since LeBron James. There is also a second, regional cover featuring Spurs forward Tim Duncan, the least appreciated player of his generation. (Deanne Fitzmaurice - Parker; John McDonough/SI - Duncan)