Silly season is well underway following the official opening of the summer window last week, so transfer rumours are flying in and out with incredible velocity here at Football Fancast.

So quickly, in fact, that we're struggling to keep track of them all. You probably are too, so we thought it would be a good idea to start compiling all the rumours involving the Premier League's top clubs into one place, trimmed down into easily digestible chunks.

It looks set to be a particularly busy window for Manchester United as they plan their first viable title charge since Sir Alex Ferguson's resignation in summer 2013, with striker Robin van Persie claiming the club intend to spend around the same amount as last summer - which saw the Red Devils smash the record for a single Premier League transfer fee on £59million man Angel Di Maria and the record for overall spend by an English club in a single window, a whopping £150million.

There's copious reports of arrivals and potential departures at Old Trafford, and it's with that in mind we've summarised this week's hottest Red Devils rumours into a streamlined three in, three out format.

OUT - ROBIN VAN PERSIE

Robin van Persie boasts a more than respectable return of 57 goals in 105 appearances for the Red Devils, firing them to their last Premier League title during the 2012/13 campaign.



But now 31 years of age, with just one season on his contract and following two terms of endless injury problems, United look set to trade in Netherlands' all-time leading goalscorer for a younger model this summer (which we'll come onto later). In April, The Daily Mail even claimed United were prepared to pay an extra £5million to get him off the wage bill.



Unfortunately, however, the Old Trafford outfit are struggling to find a buyer for the two-time Golden Boot winner.



Serie A, a top flight that practically defies the notion of running, seems like the best possible location for RVP, but Lazio ruled out a move last week.



Earlier this week, Galatasaray revealed their interest in the Dutchman, with manager Hamza Hamzaoglu telling reporters; "We want to sign players who will both improve the squad and excite our fans. No manager would be able to say no to Van Persie. We hope to come to an agreement with him,” as reported by Manchester Evening News.



But Hamzaoglu has since retracted his statement, instead claiming the Turkish outfit won't be able to afford van Persie. "Robin van Persie is not on our agenda," ESPN quotes him as saying. "The costs are very high. This year, we will be a little more careful."

IN - ROMELU LUKAKU

In a somewhat unexpected turn in United's pursuit of a free-scoring replacement for Robin van Persie, the Carrington outfit have been linked with Everton front-man Romelu Lukaku by The Express.



The 6 foot 3 striker boasts an impressive 42 goals in the Premier League despite being just 22 years of age, spanning spells with West Brom, Chelsea and the Toffees.



But the Belgium international managed just 10 in 36 this season following his £28million move from Stamford Bridge to Goodison last summer and his performances overall have been largely underwhelming.



That doesn't seem to have put Louis van Gaal off, however, and Goal.com claim recent Red Devils signing Memphis Depay popped up in a picture with Lukaku on instagram earlier this week, with the apparent chums hanging out on holiday.



Lukaku's agent Mino Raiola is certainly an ambitious character, telling reporters in April; "We will see what happens in the summer, but the Everton directors don’t have to think Rom will play there for the rest of his career.



"Later on, he’ll play for one of world’s best teams: PSG, Manchester City, Manchester United or Bayern Munich. Big names, but nothing is impossible as Rom has great potential," as reported by The Independent.

OUT - NANI

Nani's Manchester United career seemed as good as over three seasons ago as he saw red for a high boot in the Champions League 2012/13 quarter-final, so in a sense it's impressive he's somehow managed to last this long at Old Trafford.



But having failed to impact under David Moyes last season and spent the 2014/15 campaign on loan at Sporting Lisbon - where, by all accounts, he played tremendously well to net twelve in 35 across all competitions - his turbulent Red Devils tenure is expected to come to an end within the next few weeks.



The Portugal international ruled out a controversial move to Benfica, divisional rivals of his loan club, earlier this week and now appears to be on the verge of joining Fenerbahce instead - according to Squawka and United fan side The Peoples Person, who cite Turkish news service NTV Spor.



Currently on a contract worth €140k per-week that isn't set to expire until 2018, however, the 28 year-old could still drag his heels in and opt for pay at United over playing time abroad.

IN - HARRY KANE

Tottenham striker Harry Kane took the Premier League by storm this season, emerging from the peripheries of the Spurs squad to net 31 times in all competitions and finish up as the division's top scoring Englishman, and Manchester United appear to have caught themselves up in the Hurrikane's swirly breeze.



Last week came rumours from Mirror Football amongst other sources of a £40million Red Devils bid for the 21 year-old, who has been compared to Thomas Muller, Teddy Sheringham and Alan Shearer to name a few.



Phil Neville has already endorsed the move, claiming the England international would fit in perfectly at Manchester United.



So the brother of Gary will be grinning from ear to ear following quotes published by Manchester Evening News this morning, with Kane reportedly 'flattered' to find himself in the Red Devils' crosshairs.



“I am happy at Spurs and I look forward to the future with Spurs,” he said. “I have seen there is interest but that’s all I know. It is flattering for other clubs to maybe be interested.



“Tottenham are one of the big clubs. That is the way people have to see it. I am at a big club.”



Thus far, however, Tottenham remain adamant their talismanic front-man isn't for sale.

OUT - DAVID DE GEA

David De Gea's long-awaited move to Real Madrid is one of the summer window's biggest transfer sagas, with his Bernabeu switch now seemingly inevitable barring a dramatic u-turn on his thus far reluctance to pen extended terms past the end of next season.



Whether Real Madrid and United have agreed a fee for the Spain international remains open to debate. Last week, The Daily Star claimed a £22million figure had been agreed, whilst Mirror Football declared the Red Devils' valuation stands at a whopping £35million - which would make De Gea the most expensive goalkeeper of all time.



Either way, reports yesterday, courtesy of Mirror Football once again, suggest Los Blancos are about to further ramp up their interest in the PFA Player of the Year nominee, despite many previously assuming they were already interested as much as humanly possible.



Understudy goalkeeper Keylor Navas has just suffered an Achilles injury whilst representing Costa Rica at the Copa America which may require surgery and an extended period on the sidelines, so Real want to sign De Gea in time for their pre-season tour which starts in mid-July.



Meanwhile, EuroSport claim the 24 year-old is demanding the Spanish capital outfit dump current No.1 and club legend Iker Casillas as some sort of deal-breaking clause, fearing the World Cup winner's popularity at the Bernabeu could make it difficult for him to settle.

IN - NICOLAS OTAMENDI

Nicolas Otamendi has been billed as a Manchester United target ever since Borussia Dortmund star Mats Hummels ruled out an Old Trafford switch, deemed a potential solution to their dearth of quality and experience at the heart of defence.



The Argentina international has just come to the end of a formidable campaign in La Liga, netting six times in 35 appearances whilst averaging 2.9 tackles, 3.1 interceptions, 7.3 clearances and 3.5 successful aerial duels per match, and is currently representing Albiceleste at the Copa America.



And this week there have been some very interesting developments. Valencia are adamant any potential suitor must activate the 27 year-old's £35million release clause - as claimed by Sky Sports correspondent Guillem Balague back in May - which has caused some understandable hesitation on the Red Devils part.



But that's allegedly allowed Real Madrid to creep into proceedings, with reports from The Express this week claiming recently appointed mabager Rafa Benitez wants to make the 6 foot defender one of his first signings.



And rather interestingly, whilst on international duty, Otamendi has not so subtly alluded to a Mestalla departure this summer - as reported by Here Is The City.



"Valencia know very well what I want. From there, every word my agent says is obviously with my authorisation. [My Agent] fully has my authorisation to speak with whoever he needs to.



"I've had a talk with the president and my agent, and he knows very well what my wish is, but for now I've told my agent that my head is here and I'm leaving it in his hands, to do what he needs to do."