Mauricio Pochettino - who eventually made a third signing in Moussa Sissoko - was reportedly interested in reuniting with the former Southampton midfielder at White Hart Lane, just one year on from his £27 million move to Old Trafford.
Predictably, United rejected Tottenham's advances and told them he wasn't for sale.
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It would come as little surprise if Schneiderlin was left frustrated at not being able to decide his own future, especially so considering he has played just five minutes of the new season.
However, according to the Daily Mail, it was because of Jose Mourinho that the France international was denied a potential move to Spurs.
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The report states that Schneiderlin spoke with the Portuguese manager on Wednesday to discuss his future after Tottenham expressed interest, during which Mourinho insisted he is very much in his first-team plans going forward.
What remains to be seen is whether the former Chelsea boss meant that he needs Schneiderlin as cover for Paul Pogba, Marouane Fellaini and Michael Carrick, or as a potential starter.
Whatever his reasoning, Mourinho was right to keep hold of the Frenchman considering how important squad depth is to a title-chasing side.
United are challenging on multiple fronts this season - the Premier League, Europa League and FA Cup - and need sufficient back up to maintain challenges in each competition.
Win the Premier League - or anything for that matter - and Schneiderlin might be thankful that Mourinho opted to keep hold of him.
It was never in Mourinho's intentions to sell any of his players on the final day after admitting recently that he's happy with his 23-man squad for the season ahead.
"I have 23 players in the squad and, in principle, there is nobody leaving and nobody is coming," the 53-year-old said.
"It's more than enough and if you have a problem or an opportunity then I have a few young players in the Academy that I will be more than happy to give them an acceleration in their process."
It's been a quite outstanding summer transfer window for Mourinho having spent in excess of £150 million on Pogba, Zlatan Ibrahimovic, Henrikh Mkhitaryan and Eric Bailly.
One regret he may well hold, though, is not being able to sell Bastian Schweinsteiger.
The 32-year-old - who played his final game for the Germany national team on Wednesday night - refused to leave United in a bid to earn Mourinho's trust and play once more at the Theatre of Dreams.
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