Although Begovic never moved to Spurs, the clubs had agreed a joint fee with Younes Kaboul with the agreement that £1million would be paid to Spurs if the Bosnia international moved elsewhere.
Begovic eventually moved to Stoke, shortly after which Pompey went into administration, since when they have been disputing whether they actually owe Tottenham the money.
Now the Premier League have become involved and have been satisfied that Portsmouth are contractually obliged to pay Spurs the £1million.
If the money still does not materialise, the league will top-slice it off the cash due to be received by Portsmouth at the end of next year in parachute payments and pass it on to Spurs directly.
Tottenham said in a statement earlier this year: "Our original agreement with Portsmouth was for the purchase of two players for a combined, agreed price. The transfer of Younes Kaboul was completed and Portsmouth pressed for an immediate payment to alleviate their cashflow situation.
"To assist Portsmouth with their financial difficulties we paid Portsmouth an agreed sum of money, whilst at the same time concluding an agreement that, should Begovic be sold or loaned to any club other than ourselves, we would be repaid the sum of £1m.
"Portsmouth were keen to openly and freely agree to this surety."
Source: Team Talk
Source: Team Talk