The Rangers took the field on Opening Day as the youngest team in baseball by average 25-man roster age, more than three years younger than the Giants, who are the most senior club in the game.
There is a disparity of three years and 114 days between the Rangers (average of 27 years, 337 days per player) and the Giants (31 years, 86 days), according to data compiled by MLB Network.
Catcher Jorge Alfaro (born June 11, 1993) is the youngest player on the Rangers' 40-man roster, while Adrian Beltre, who turns 36 on Tuesday, is the oldest. Tim Hudson is the oldest player on the Giants' 40-man (born July 14, 1975). He is one of four players on the team who were born in the 1970s; the others are Jeremy Affeldt, Javier Lopez and Ryan Vogelsong.
The Major League average age is 29 years and 54 days. Texas is the only team in baseball with an average age under 28 years old, and San Francisco is the only club with an average age over 31.
The Rangers, D-backs, Rays, A's and Braves are the five youngest teams by average. The oldest clubs are the Giants, Reds, Yankees, Royals and Nationals.
Joey Nowak is a reporter for MLB.com. Follow him on Twitter at @joeynowak. This story was not subject to the approval of Major League Baseball or its clubs.