Possible Clues:

• Member of the 600 home run club
• Cubs great Sammy
• Slammin' Sammy
• Baseball's 'Slammin' Sammy'
• Cub with many dingers
• Player suspended in 2003 for using a corked bat
• Name in the '98 homerun derby
• He smacked 66 in '98
• Fifth player to hit 600 homers
• 1998 home run race participant