Manchester City saw their title hopes effectively ended after being held to a home draw by the Premier League's bottom club Sunderland.
An independent commission may be asked to rule on Cardiff's complaint that their team line-up was leaked to Crystal Palace.
The Premier League is investigating an official complaint, with the BBC reporting that Cardiff have argued the 3-0 result on April 5 in Palace's favour should not stand.
League chiefs will decide whether the complaint should be taken forward - it is understood there remains uncertainty about whether any regulation would have been breached even if proven.
If the complaint is taken forward it is likely to be dealt with by an independent commission.
It's not easy selling early bird season tickets for perennial Championship underachievers, so step forward Jonathan Woodgate and his new, erm... bird!
Premier League title chasers Liverpool travel to Norwich on Sunday knowing their star man has an incredible goalscoring record against the Canaries.
Will the Uruguayan add to his 11 goals in five games? Get in touch @ITVFootball
Real Madrid midfielder Xabi Alonso lavished praise on Gareth Bale for the incredible solo goal which sealed his team's Copa del Rey final victory over Barcelona.
– Real Madrid midfielder Xabi Alonso
The goal was incredible , I don't think I've seen anything like it. It looked like the ball was going out and he was under pressure, he ran off the pitch to keep it in, it was just amazing.
Now we have the taste of victory. It was a really exciting game, with both sides playing at their best.
Cristiano Ronaldo consoling Lionel Messi after the final whistle. http://t.co/SnrqP8v0Ui