How old were they?

Mario Guerrero

SS · Born September 28, 1949

Age in each season

1. 1973 (Red Sox): 23 years, 185 days to 24 years, 3 days
2. 1974 (Red Sox): 24 years, 185 days to 25 years, 3 days
3. 1975 (Cardinals): 25 years, 185 days to 26 years, 3 days
4. 1976 (Angels): 26 years, 186 days to 27 years, 3 days
5. 1977 (Angels): 27 years, 185 days to 28 years, 3 days
6. 1978 (Athletics): 28 years, 185 days to 29 years, 3 days
7. 1979 (Athletics): 29 years, 185 days to 30 years, 3 days
8. 1980 (Athletics): 30 years, 186 days to 31 years, 3 days