To ensure their rigorous rules are being adhered to, LaLiga will carry out inspections of the grass, which should be between 20 and 30 millimeters long and cut in a straight line. Flexibility in players in the A-squad (maximum 25 players, including a maximum of three goalkeepers) must wear a number between 1-25. Goalkeepers must wear either 1, 13 or 25. When players from the reserve team are selected to play for the first team, they are given squad numbers between 26 and 50. 24. donGaboz. • 5 yr. ago. How many foreign players can play in a LaLiga team? There are currently 41 non-EU or 'foreign' players registered to play in Spain's top division. There are limits as to how many each Ty8Qy.