Out of curiosity I went through the rosters on BR and found the players who debuted in the 90's and were on a roster this year, with the year they debuted and age: Alex Rodriguez 1994 39 Jason Giambi 1995 43 LaTroy Hawkins 1995 41 Derek Jeter 1995 40 Raúl Ibañez 1996 42 Jamey Wright 1996 39 Bobby Abreu 1996 40 Bartolo Colon 1997 41 Torii Hunter 1997 39 Paul Konerko 1997 38 David Ortiz 1997 38 Carlos Beltrán 1998 37 Adrian Beltre 1998 35 Eric Chávez 1998 36 Bruce Chen 1998 37 Álex González 1998 37 Aramis Ramirez 1998 36 A.J. Pierzynski 1998 37 Tim Hudson 1999 39 Randy Wolf 1999 38 Jose Molina 1999 39 Joe Nathan 1999 39 A.J. Burnett 1999 37 Kyle Farnsworth 1999 38 John McDonald 1999 40 Buddy Carlyle 1999 36 Alfonso Soriano 1999 38 Jeter, Konerko, and Chavez are retiring after this season. Some of the players (Abreu, Ibanez, Farnsworth, Giambi) are probably done as well, whether they want to be or not. Beltre and Ramirez are probably the only candidates to make it to the threefour decade club. If you find anybody I missed, let me know. Also, Buddy Carlyle? WTF? ETA: In the couple hours since I made this post, Abreu announced his retirement. Also forgot ARod.