Queens Park Rangers (QPR) secured their return to the Premier League for the first time in 15 years when they beat Watford 2-0 on Saturday to open up an unassailable lead in the Championship (second division).
However, before their final game of the season, they will hear the ruling of a Football Association (FA) regulatory commission on seven charges relating to the transfer and contract renewal of Argentine midfielder Alejandro Faurlin. If found guilty, they could have points deducted.
Rangers needed only a draw to ensure enough points for promotion. They took all three points with late goals by Adel Taarabt, last week voted the Championship's player of the season, and Tommy Smith.
Rangers have 88 points, with Norwich City, who visit Portsmouth on Monday, second on 80. Cardiff have 79 ahead of their game against Middlesbrough on Monday.
Swansea City and Reading are guaranteed a place in the four-team playoffs while Nottingham Forest look certain to join them but need a point from their final game to make certain at the expense of Leeds United.
QPR, founder members of the Premier League in 1992 but relegated in 1996, have climbed back to prominence in recent years with the backing of motor racing supremo Bernie Ecclestone, former Formula One team boss Flavio Briatore and Indian billionaire Lakshmi Mittal.
The West London side face the FA's hearing on Tuesday. A tabloid newspaper said on Friday that they would be docked 15 points if found guilty of the charges, dropping them back into the playoffs, but the FA said no decision had yet been taken.