MK Dons say that they will not be taking further action over news that Sunderland fielded an ineligible player against them in the Capital One Cup clash between the two sides earlier in the season.
Striker Ji Dong Won, who has since joined Augsburg in the Bundesliga and has agreed to sign for Borussia Dortmund in the summer, hadn't received international clearance to play.
The Dons were only made aware of the breach last night, while the Football League first heard about it in late November.
In a statement on the club's official website, MK Dons said:
"By the time the Football League were aware of the player’s ineligibility, Sunderland had already progressed to the fifth round of the Capital One Cup.
"The club acknowledges that the Football League board dealt with the situation as they saw fit and will not be pursuing the matter further."
MK Dons have been dealt a blow with the news that key midfielder Ben Reeves will miss the rest of the season with an ankle injury.
Reeves, who earned his first call-up to the Northern Ireland squad in February, has been a regular in the Dons side since signing from Southampton last summer and is the club's top scorer.
"I’m gutted to lose Reevesy because he’s been one of our players of the season," manager Karl Robinson told the club's official website.
"He is a great guy and a great player, as we’ve all seen this season through his goals, assists and performances.
“Knowing Reevesy like I do, I’m confident he’ll come back even stronger from this and hopefully he can pick up where he left off at the start of next season. I know he’ll work around the clock with our medical team to get right.”
MK Dons have completed the loan signing of young Everton winger Matthew Kennedy on a deal until the end of the season.
The Scot previously played for Tranmere Rovers earlier in the campaign.
19-year-old Kennedy started his career at Kilmarnock before signing for Everton back in 2012.
“He’s someone we’ve watched throughout the season in the U21s at Everton and he’ll bring pace, trickery and excitement," manager Karl Robinson told the club's official website.
“He did very well for Tranmere earlier this season and he is highly thought of by Roberto Martinez and the coaches at Everton. I’d like to thank Roberto and Everton for allowing us to get this deal done and I look forward to working with him.”
MK Dons have signed former Arsenal midfielder Mark Randall on a deal until the end of the season.
The 24-year-old has been without a club since leaving Italian club Ascoli.
Randall is no stranger to Stadium:MK after enjoying a loan spell with the Dons back in 2010.
He was also born in the town.
“It’s taken longer to get over the line than we would have liked," manager Karl Robinson told the club's official website.
“I’m now looking forward to having Mark available to select. He’s from MK, he’s a talented footballer and he suits our style."
MK Dons midfielder Ben Reeves has been named in the Northern Ireland squad for the first time for their friendly with Cyprus next week.
The 22-year-old has been in fine form for the Dons this season, hitting 10 goals in 30 appearances.
Former Southend United loanee Reeves is the only uncapped player selected by manager Michael O'Neill.
Northern Ireland squad to face Cyprus:
Goalkeepers: Roy Carroll (Olympiakos), Alan Mannus (St Johnstone), Michael McGovern (Falkrik)
Defenders: Gareth McAuley (West Bromwich Albion), Daniel Lafferty (Burnley), Rory McArdle (Bradford City), Ryan McGivern (Hibernian), Craig Cathcart (Blackpool), Alex Bruce (Hull City)
Midfielders: Steven Davis (Southampton), Oliver Norwood (Huddersfield Town), Shane Ferguson (Birmingham City), Chris Brunt (West Bromwich Albion), Sammy Clingan (Kilmarnock), Paddy McCourt (Barnsley), Ben Reeves (MK Dons)
Strikers: Billy McKay (Inverness C T), Martin Paterson (Huddersfield Town), Jamie Ward (Derby County), Niall McGinn (Aberdeen), Dean Shiels (Rangers), Kyle Lafferty (Palermo)
MK Dons have signed exciting Fulham winger Larnell Cole on loan until the end of the season.
The 20-year-old only moved to Craven Cottage in the January transfer window after former Cottagers boss René Meulensteen decided to bring him in from Manchester United.
Cole is eligible to make his Dons debut in tonight's match against Oldham Athletic, subject to Football League and Premier League approval.
"I'm really excited by this signing," manager Karl Robinson told the club's official website.
"We've been watching him for a while and he is a high-potential player.
"We had to react quickly to the Samir (Carruthers) injury and he's exactly the type of player I want to bring to the Football Club - a player of quality, a player of note."
MK Dons midfielder Darren Potter has signed a new two-year contract with the League One club.
The former Liverpool man, who is a key player at Stadium MK, has now committed his future to the Dons until 2016.
“He’s been consistently one of our best performers over the past three seasons," manager Karl Robinson told the club's official website.
“Every team has an integral part of the group and I’m sure that the players would agree when I say that he’s huge for us and the development of our young players."
It's been a busy day for the Dons, with the club also signing young Bolton Wanderers winger Sanmi Odelusi.
Odelusi's Bolton teammate Cian Bolger has joined Southend United on a month's loan.
MK Dons have signed Bolton Wanderers youngster Sanmi Odelusi on an initial month's loan.
The winger could make his Dons debut in Saturday's League One clash with Bradford City.
20-year-old Odelusi spent time with QPR and Reading before joining Bolton.
MK Dons have signed former Southend United winger Ryan Hall on a contract until the end of the season.
The 26-year-old's superb performances for the Shrimpers earned Hall a move to Championship side Leeds United in 2012, but he was released by the Yorkshire club this season.
Hall has played for non-league outfit Bromley briefly since, but he has now been snapped up by Dons manager Karl Robinson in the hope that he can recapture the form that served him so well at Roots Hall.
West Ham's Jordan Spence is set to return to Stadium MK.
The 23-year-old spent two months on loan with MKDons earlier this year and made 12 appearances.
He will now re-join the Milton Keynes club on loan from West Ham until the end of the season.
The former England Under-21 international completed the move earlier today and took part in training ahead of Saturday’s clash with Tranmere Rovers.
Manager Karl Robinson said: “Jordan is a talented young defender and he was part of our back four which kept five clean-sheets over Christmas. We’re hopeful he can help to sure-up a defence which has conceded an awful lot of goals in recent weeks.”