On Opening Day 2010, that was pitcher Jamie Moyer of the Philadelphia Phillies who is 47 years old (born November 18, 1962).
Satchel Paige
Randy Johnson
oldest player to pitch in the mlb
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Bartolo Colon (Mets): age 42 at the start of the season - born May 24, 1973 As of November 2016 he was still expected to be on an MLB roster in 2017 - which would keep him the oldest MLB player still playing in 2017 as well.
Jamie Moyer, a Phillies pitcher, at age 48
Matt Stairs.
Jose Altuve, Houston Astros 5'5"
Julio Franco, utility infielder for the New York Mets, was born August 23, 1958 and is the oldest active player in MLB. Roger Clements is the oldest pitcher in the league. He was born August 4, 1962. Before Clements came back the oldest pitcher was Jamie Moyer who was born November 18, 1962.
Kurt Thomas aged 39
MarK Recchi, 43
MLB's Greatest Games on MLB Network - 2011 was released on: USA: 3 January 2011