Kira seems to have two different jerseys. When she walks into the dugout after the top of the first, it says "Kira". In later scenes it says "Nerys". Baseball jerseys traditionally list the player's last name, but since for Bajorans this is the first name listed, Kira's jersey should say "Kira".
Also, Leeta's name can not be seen on her practice jersey, but is printed as "Leeta" on her game jersey, the same mistake. Granted, we never learn Leeta's family name, but she presumably would have one.