It's only at the moment of contact when the players need to be in alignment. Before or after the contact, it's legal for players to be anywhere on the court they desire.RB (RF and MB) RF (RB and MF) MF (RF, LF, and MB) LF (MF, LB) LB (LF, MB) MB (MF, LB, RB) The positions that can't overlap with one another are.The result of being 'out of alignment' is loss of the ball and point for the opponent.
The following are some key points for how to line up to receive a serve.
