Biggest 'what if' athletes of all time

Grant Hill's retirement got us to thinking about other athletes whose careers were cut short or hampered by injury. While this isn't the definitive list of stifled greatness, we came up with some pretty big names. Who else should be on the list?

Sam Bowie guards Bill Walton during his rookie season (Getty Images)
Sam Bowie guards Bill Walton during his rookie season (Getty Images)
Sam Bowie guards Bill Walton during his rookie season (Getty Images)
­HOUSTON - APRIL 30: Center Yao Ming #11 of the Houston Rockets in Game Six of the Western Conference Quarterfinals during the 2009 NBA Playoffs at Toyota Center on April 30, 2009 in Houston, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Ronald Martinez/Getty Images)
Ralph Sampson's Hall of Fame career
CHARLOTTE, NC - APRIL 30: Larry Johnson #2 of the Charlotte Hornets battles for a rebound against Michael Jordan #45 of the Chicago Bulls in Game Two of the Eastern Conference Quarterfinals during the 1995 NBA Playoffs at the Charlotte Coliseum on April 30, 1995 in Charlotte, North Carolina. The Charlotte Hornets defeated the Chicago Bulls 106-89. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 1995 NBAE (Photo by Nathaniel S. Butler/NBAE via Getty Images)
1995 Eastern Conference Quarterfinals, Game 2: Chicago Bulls vs. Charlotte Hornets
CHARLOTTE, NC - APRIL 30: Larry Johnson #2 of the Charlotte Hornets battles for a rebound against Michael Jordan #45 of the Chicago Bulls in Game Two of the Eastern Conference Quarterfinals during the 1995 NBA Playoffs at the Charlotte Coliseum on April 30, 1995 in Charlotte, North Carolina. The Charlotte Hornets defeated the Chicago Bulls 106-89. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 1995 NBAE (Photo by Nathaniel S. Butler/NBAE via Getty Images)
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
Chicago White Sox v Chicago Cubs
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
Cincinnati Reds v Houston Astros
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
CHARLOTTE, NC - APRIL 30: Larry Johnson #2 of the Charlotte Hornets battles for a rebound against Michael Jordan #45 of the Chicago Bulls in Game Two of the Eastern Conference Quarterfinals during the 1995 NBA Playoffs at the Charlotte Coliseum on April 30, 1995 in Charlotte, North Carolina. The Charlotte Hornets defeated the Chicago Bulls 106-89. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 1995 NBAE (Photo by Nathaniel S. Butler/NBAE via Getty Images)
1995 Eastern Conference Quarterfinals, Game 2: Chicago Bulls vs. Charlotte Hornets
CHARLOTTE, NC - APRIL 30: Larry Johnson #2 of the Charlotte Hornets battles for a rebound against Michael Jordan #45 of the Chicago Bulls in Game Two of the Eastern Conference Quarterfinals during the 1995 NBA Playoffs at the Charlotte Coliseum on April 30, 1995 in Charlotte, North Carolina. The Charlotte Hornets defeated the Chicago Bulls 106-89. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 1995 NBAE (Photo by Nathaniel S. Butler/NBAE via Getty Images)
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
Chicago White Sox v Chicago Cubs
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
Cincinnati Reds v Houston Astros
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
Chicago White Sox v Chicago Cubs
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
Cincinnati Reds v Houston Astros
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
Chicago White Sox v Chicago Cubs
CHICAGO, IL - MAY 18: Kerry Wood #34 of the Chicago Cubs waves to fans after leaving the game against the Chicago White Sox on May 18 2012 at Wrigley Field in Chicago, Illinois. inning. It was announced that Kerry Wood is retiring from baseball today. (Photo by David Banks/Getty Images)
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)
Cincinnati Reds v Houston Astros
HOUSTON,TX-JUNE 01: Former Astro pitcher J.R. Richard throws out a ceremonial first pitch before the Houston Astros played the Cincinnati Reds on June 1, 2012 at Minute Maid Park in Houston, Texas. (Photo by Bob Levey/Getty Images)

What to Read Next