Mark Teahen
3B · Born September 6, 1981
Age in each season
- 2005 (Royals): 23 years, 207 days to 24 years, 25 days
- 2006 (Royals): 24 years, 207 days to 25 years, 25 days
- 2007 (Royals): 25 years, 207 days to 26 years, 25 days
- 2008 (Royals): 26 years, 208 days to 27 years, 25 days
- 2009 (Royals): 27 years, 207 days to 28 years, 25 days
- 2010 (White Sox): 28 years, 207 days to 29 years, 25 days
- 2011 (White Sox, Blue Jays): 29 years, 207 days to 30 years, 25 days