Astronaut Sally Ride is one of three of the live racing characters (along with Buzz and Neil) in the Trash Panda’s Live race each game.
Sally Kristen Ride was an American astronaut and physicist. Born in Los Angeles, she joined NASA in 1978, and in 1983 became the first American woman and the third woman to fly in space, after cosmonauts Valentina Tereshkova in 1963 and Svetlana Savitskaya in 1982. Wikipedia
This week the team also used the racing character Sally as a bobblehead giveaway, well promoted by the team.
A lot of MILB teams uses non-players especially later in the season in case of call-ups and this is a good example. Its also helps to highlight the race and add value to their racing characters.