Jon Lieber
P · Born April 2, 1970
Age in each postseason series
- 2004 ALDS (October 5, 2004), Yankees vs Twins 3–1: 34 years, 186 days
- 2004 ALCS (October 12, 2004), Yankees vs Red Sox 3–4: 34 years, 193 days
Age in each season
- 1994 (Pirates): 23 years, 364 days to 24 years, 182 days
- 1995 (Pirates): 24 years, 364 days to 25 years, 182 days
- 1996 (Pirates): 25 years, 365 days to 26 years, 182 days
- 1997 (Pirates): 26 years, 364 days to 27 years, 182 days
- 1998 (Pirates): 27 years, 364 days to 28 years, 182 days
- 1999 (Cubs): 28 years, 364 days to 29 years, 182 days
- 2000 (Cubs): 29 years, 365 days to 30 years, 182 days
- 2001 (Cubs): 30 years, 364 days to 31 years, 182 days
- 2002 (Cubs): 31 years, 364 days to 32 years, 182 days
- 2004 (Yankees): 33 years, 365 days to 34 years, 182 days
- 2005 (Phillies): 34 years, 364 days to 35 years, 182 days
- 2006 (Phillies): 35 years, 364 days to 36 years, 182 days
- 2007 (Phillies): 36 years, 364 days to 37 years, 182 days
- 2008 (Cubs): 37 years, 365 days to 38 years, 182 days