Kirby Puckett.
The pudgey guy who stormed into the Bigs winning Rookie of the Year, 6 Gold Gloves, 6 Silver Sluggers, 10 consecutive All Star appearences, 2 World Series (including one of the most dramaticseries' ever), 1989 batting title (I could go on). Then, in 1995, he took a pitch from Denny Martinez off the cheek to prematurely end his season. In March of 1996, he had developed glaucoma and permanently lost sight in his right eye. Puckett was made executive VP of the Minnesota Twins and won the Roberto Clemente award. Things went downhill sometime after that. in 2002, he was accused of sexual assault, false imprisonment and fifth degree assault. He was found not guilty on all accounts but resigned as VP. His marriage ended and he also struggled with weight issues, reportedly reaching over 300 lbs. On March 5th of 2005, Puckett suffered a massive stroke and passed away on March 6th.
Puck was one of my all time favorites and one of the greatest hitters of his era.