AFC Wimbledon have been deducted 18 points by the Ryman League Appeals Committee for fielding a player without international clearance.
Darlington played 11 matches without clearance
The Dons have already been expelled from the FA Trophy for fielding Jermaine Darlington.
And they have now had points taken off for the 11 games in which the former Cardiff midfielder featured for them.
The Dons breached three league rules and were also fined £400 and the costs of the hearing.
The deduction dents Wimbledon's hopes of gaining promotion to Conference South.
The Dons are currently fourth in the Ryman Premier Division on 51 points, but will drop to 12th on 33 points.
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