They probably wanted to make sure that the people can see the numbers better since it's a bright colour. They also have a little bit of red on their logo so they had no choice but to choose red to make the numbers stand out.
dodger stadium
Red Patterson is number 51 on the Los Angeles Dodgers.
The New York Mets wear Dodger Blue and Giant Orange in honor of the two National League teams that's were in and left New York before they were formed in 1962
Troy? as in Troy Brown? His jersey number was 80.
20
9
His number was 9, they retired it in 1984.
Jerry Remy was number 2 both with the Red Sox and with the Angels.
no
#23 between 1965-1971.
18
there is not a number 5 right now but who once wore this jersey was nomar garciaparra.