ROSTER CHANGES ARE NOT INSTANTANEOUS.
Depending on the team level (Rec vs. Comp), time of season (there is always a mad last-minute rush before season start) and other technical factors, teams should expect at least a 5 day turnaround.
Drop off or mail to SFYS for each dropping player:
If a player wishes to release from a team, he or she may do so as long as the team does not drop below the minimum roster size. The team may need to first find another player before releasing a player. If the player wishes to drop from your team and instead play on another team, please see the transfer instructions.