Who is the second oldest player in major league baseball?
Minnie Minoso was 54 years old in 1980, when he was brought back
for TWO GAMES in a publicity stunt by the Chicago White Sox.
Similarly, Satchel Paige (59), Charles O'Leary (58), Nick Altrock
(57), and Jimmy O'Rourke (54) all played token amounts in games
long after they retired.
Julio Franco, at age 49 in 2007, had 106 plate appearances
before retiring the next year. Jack Quinn was 50 when he was still
pitching on a regular basis in 1933. So, to me, the answer would be
Julio Franco UNLESS you count token appearances for purely