The January transfer window may have just slammed shut, but English clubs still have another six weeks or so to conduct some business, albeit only of a temporary nature. Indeed, the emergency loan window officially opened yesterday and in case you're not too clued up on it, we've got a cheat sheet below:

How Long Does It Stay Open?

This year's emergency loan window runs from February 8th until March 24th. Afterwards, clubs can't make any new signings - temporary or otherwise - until the summer.

Who can do business?

Premier League clubs can't make additions, but every club in the Football League can, so the emergency loan window is usually utilised by the top flight as a chance to issue prospects some vital first team experience elsewhere. Clubs from the lower tiers, meanwhile, are looking for players who can provide cover for their injured regulars or add quality to a promotion/survival bid.

Couldn't they have sorted it January?

Yes, but emergency loans are a little different. They last between 28 and 93 days rather than from one transfer window to another and the parent club has the right to recall after one month, so Premier League teams are usually more willing to sanction a deal.

Any notable examples?

Arsene Wenger has utilised the emergency loan window to great effect in recent years and resultantly praised its utility to Premier League clubs. Hector Bellerin and Francis Coquelin were 'toughened up' by short Championship spells with Watford and Charlton Athletic respectively before becoming regulars in the Arsenal starting Xi upon their return to the Emirates.

So with that in mind and the window officially open, we take a look at FIVE Manchester United youngsters who could be set for a loan move to the Football League.

WILL KEANE

Will Keane was once billed as one of Manchester United's most exciting youngsters but hasn't made much progress since his first team debut in 2011. In fact, he's yet to register another appearance for the Red Devils in any competition.

Louis van Gaal unexpectedly recalled the 23-year-old from a loan spell at Preston North End in December amid a mounting injury crisis at Old Trafford. But with Wayne Rooney and Anthony Martial now fully fit, and having failed to make even a stoppage time cameo outing since returning to his parent club, United are unlikely to block moves for a young forward whose contract expires at the end of the season.

Indeed, Keane deserves the chance to showcase his abilities at Football League level before being released. He didn't have much of an impact in the Championship, however, scoring just once in 20 appearances for Preston, so perhaps a move to League One should be considered.

REGAN POOLE

Regan Poole is just 17 years of age but already has some Football League experience under his belt with Newport County, who he represented 15 times in League Two before moving to Manchester United last summer.

Louis van Gaal clearly rates the Welsh centre-back highly, issuing him the No.41 shirt and including him in United's registered squad for the knockout stages of the Europa League.

That suggests the Red Devils might already have plans for the Wales U17 in the second half of the season, and it's rather telling that he was thrust straight into United's U21 side upon gaining international clearance in October.

But lower league clubs will be attracted to Poole's brief experience at first team level and if he can get regular starting opportunities elsewhere, he would be wise to take them.

ANDREAS PEREIRA

It's no secret that Andreas Pereira was pushing for a loan move in January, with Premier League table-toppers Leicester City one of the clubs reportedly interested, but Louis van Gaal blocked a departure amid concerns over United's rapidly increasing injury list.

Nonetheless, the Brazilian is desperate to get some playing time under his belt to guarantee his place in the Selecao squad for the Olympic Games in Rio and plenty of Football League clubs would happily take the 20-year-old midfielder off United's hands.

Indeed, the playmaker has already shown glimpses of his ability in nine senior outings for the Red Devils and was one of the stars of last year's U20 World Cup, scoring against Serbia in the tournament's final.

He's not exactly naturally suited to the attitional style of the lower tiers but Pereira's technical quality and creative flair represents something a significant number of Football League clubs don't currently have.

MARCUS RASHFORD

Marcus Rashford may still be awaiting his first-team debut but the young forward is regarded as one of Manchester United's most exciting youngsters, having flourished since being redeployed as an out-and-out striker.

Indeed, the 18-year-old was once seen as more of a No.10 but netted 13 times last season to finish as the youth team's top scorer after being moved to centre-forward. He's since represented the U21 squad, trained with United's first team and even took a spot on the bench during a Premier League clash against Watford in November.

Completing Rashford's transition to centre-forward could require a few outings there at senior level and the Football League remains the likeliest source to provide it. He's still a massive punt for FL clubs but one who has the potential massively surpass expectations.

PADDY MCNAIR

Paddy McNair is the most experienced player on this list, having registered 27 appearances across all competitions since the start of last season, and has become Louis van Gaal's tried and trusted backup option when numbers are seriously depleted in defence.

But Phil Jones is on the mend and Marcos Rojo is expected to be back in action before the end of the month, and having made just seven outings this season compared to last term's 18, the chances are that McNair's involvement in the second half of the campaign will be mostly restricted to FA Cup and Europa League action.

There's certainly nothing wrong with that but the Northern Ireland international could be playing on a weekly basis at Championship level. Furthermore, the 20-year-old arrived at United as an attacking midfielder but now finds himself at centre-back, so he's got a mountain of game-time to catch up on if that's going to be his primary position.

Wolves, Blackburn and Burnley were all linked last month.