Documentation that confirmed Adrien Silva's move from Sporting Lisbon to Leicester arrived on FIFA's computerised system 14 seconds late on Deadline Day Documentation that confirmed Adrien Silva's move from Sporting Lisbon to Leicester arrived on FIFA's computerised system 14 seconds late on Deadline Day

Leicester City's deal for Sporting Lisbon midfielder Adrien Silva remains in question after papers arrived 14 seconds late, Sky Sports News understands.

Leicester thought they had beaten the August 31 deadline to sign Silva as a replacement for Danny Drinkwater, whose move to Chelsea was also confirmed after the 11pm cut-off.

But, in a bizarre development, it has emerged that the documentation confirming the deal between Leicester and Sporting for the £22m move arrived with the Football Association 14 seconds after their midnight deadline had passed.

The FA immediately forwarded the deal to FIFA's Transfer Matching System, which was rejected by the world governing body because the deadline had passed.

Leicester hoped to sign Adrien Silva as a replacement for Danny Drinkwater, who moved to Chelsea

Sky Sports News has been told Leicester were frustrated in the delays in transfer papers reaching them but that they were completed and signed within minutes upon arrival.

Leicester officials are confident the papers were sent before the midnight deadline - a one-hour extension having been granted by FIFA for the international transfer.

But the Transfer Matching System (TMS) - which links clubs with the FA, other governing bodies and FIFA, shows the documents were late in arriving.

FIFA said on Wednesday: "We can confirm that FIFA has been contacted by The Football Association in connection with the registration of the player Adrien Silva and the club Leicester City. FIFA has replied accordingly providing reference to applicable regulations."

Danny Drinkwater became a Chelsea player after the deadline had passed

The FA is now working with Leicester to try to resolve the situation, attempting to persuade FIFA that the deal should be allowed to stand.

However, according to reports in Portugal, Sporting president Bruno de Carvalho believes the actual transfer is complete and the missed deadline means Leicester will have to wait until January to register Silva.

He is reported as saying: "I would like people to realise that FIFA has not ruled against the transfer, but against registration. The transfer is done, what is at stake is the registration and I hope you can enrol. Adrien was exemplary. Leicester needs the player a lot and I hope they find a solution."