With the 19-year-old's nightmare Hamburg loan causing German sentiment to sour on him, there could be an opportunity for Tottenham Hotspur to pounce in the summer.
Spending most of last season in the German fourth tier with the club’s under-23s, the winger’s lone senior appearance during 2013-14 came in the final minutes of the club’s 3-1 Champions League win at CSKA Moscow but, at just 18, it remained as clear an indication as ever of his potential.
Having moved to Europe with his German mother, aged two, the Florida-born wonderkid’s international status soon became the subject of much wrangling, with his decision to opt for the nation of his father’s birth in March, after some convincing from USA manager Jurgen Klinsmann, seen as a major coup for the stars and stripes.
Going on to make his debut against Mexico in April, he was then a surprise inclusion in the 23-man World Cup squad for Brazil, given his lack of professional experience, but, while he made just one substitute appearance, his impact was undeniable.
Coming on in extra-time in the last-16 tie against Belgium, with the US 2-0 down, Green would score his side’s lone goal of the game in a spirited defeat, in a cameo which appeared to signal his arrival on the global stage.
Tipped to make Bayern’s first-team for the coming campaign upon returning from Brazil, the youngster joined the senior squad for their preseason tour of the US, although club CEO Karl-Heinz Rummenigge was reserved about his chances of featuring on a regular basis should he make the final cut.
“He’s something special and very young,’ he told Sports Illustrated in July. “On our team he’s the backup of players like [Arjen] Robben and [Franck] Ribéry, world-class players, so it’s not easy to take their place in the first 11 of our team.
“He came up from our youth department, had a big opportunity in the World Cup and scored a fantastic goal against Belgium. With a bit of luck he can do well [at Bayern].”
Rummenigge also revealed at the time that the German champions had rejected Premier League offers for Green following the World Cup, which, given reports from the likes of the Guardian that Tottenham Hotspur were keen on his signature, would seem be place Spurs as a probable bidder.
A move did in fact materialise prior to the close of the transfer window but it was instead a season-long loan switch to Bundesliga rivals Hamburg, where it was hoped that the promising wide man would accrue some valuable first-team experience to prepare him for life at the Allianz Arena.
Instead, things have not gone at all to plan, with Green enduring a nightmare six months which has seen him make just five league appearances for a total of 113 minutes.
Dropped to the Under-23s this winter as a result, he was then accused of refusing to turn out for the side and, while he has since accepted his assignment, the criticism has not relented.
Lambasted in Kicker magazine for “jogging” and “back-passing” throughout the reserves' 3-1 win over their St Pauli counterparts, German sentiment now appears to be souring on Greens’ potential, leaving his future up in the air for when he returns to Pep Guardiola’s side in the summer.
With his Hamburg spell suggesting there’ll be little hope of a first-team spot under the Spaniard next season, another loan move could well be on the cards but it’s also possible that the club even opt to cash in on his services should the right offer come in, considering their current depth on the flanks.
Still a promising and skilful attacker, despite his recent struggles, should that scenario come to fruition then Tottenham should be right at the front of the queue, with Mauricio Pochettino’s growing track record for nurturing emerging talent making White Hart Lane an appealing destination.
Pace out wide is one ingredient which the Spurs boss could do with adding more of to his squad come the summer and Green no doubt adds that in abundance, particularly from a super sub role which he’d likely be used in during his start to life in north London.
With the likes Nabil Bentaleb, Eric Dier, Christian Eriksen, Harry Kane and Ryan Mason embedded in the first-team, and Dele Alli, Cameron Carter-Vickers, Josh Onomah, Nathan Oduwa, Harry Winks and DeAndre Yedlin all to come, Tottenham look to be forming a squad that could contend with the best in the future, and Green would be another prized name to add to the collection.
He would be somewhat of a reclamation project after the last half season but, considering the expectations for him following the World Cup, there'd be little reason not to make a run at his signature once the summer window opens, with the potential rewards far outweighing the risks.