The shortstop caught the ball. The pitcher caught the ball and threw it to the shortstop for the out.
Yes, shortstop is a common noun.
The baseball player played shortstop in the game.
tennis Baseball/shortstop
Mike Burke - shortstop - was born in 1854.
Mike Jacobs - shortstop - was born in 1877.
Rudy Hernández - shortstop - was born in 1951.
Snoopy plays shortstop .
A short or a shortstop isn't about the size of the player, but about what position/task the player has on the field.
Ed Glenn - shortstop - was born in 1875-10.
Tom Carey - shortstop - was born in 1846-03.
Derek Jeter started the 1996 season as the Yankees starting shortstop. Tony Fernandez played shortstop for the Yankees in 1995.