Manchester City's 3-2 loss to Wolverhampton Wanderers has inspired a reaction on the other side of the city.
Fans of Manchester United are fearing the worst over their own plans to appoint Mauricio Pochettino with the ex-Tottenham Hotspur manager a potential appointment for their cross-town rivals.
Rumours have swirled around the potential departure of Pep Guardiola at the end of the season.
If the former Barcelona and Bayern Munich boss were to leave the Etihad Stadium in the summer then the coach who took Spurs to the Champions League final in June could be an obvious appointment.
Pochettino is currently out of work after having been dismissed by Daniel Levy and the Tottenham board in November to make way for Jose Mourinho.
The Portuguese had lost his job at United last year to be replaced by Ole Gunnar Solskjaer, initially as caretaker manager.
Critics of the Norwegian have wanted to see him removed from his position in order to clear a path for the ex-Spurs head coach to take over at Old Trafford.
Given the prospect of the City job becoming available sooner rather than later some United supporters have been left feeling rather uneasy about the next big managerial shift in the landscape of Mancunian football.
Here's what fans have said on Twitter following the surprise win for Wolves that saw Nuno Espirito Santo's side come back from a two goal deficit to win.
Pochettino was previously considered for the Manchester United job only for Mourinho to win the race to replace Louis van Gaal in 2016.
The Portuguese is now on to his third stint at a London club after having twice managed Chelsea before arriving at Tottenham in November.
He has so far won the Premier League three times, all with the Blues, and is one of only three managers to defend an English title in the Premier League era.
Guardiola and Sir Alex Ferguson are the other two bosses to have achieved the same feat, with City and United, respectively.
Pochettino is still to win a major trophy as a manager despite turning Spurs into top four regulars and a team of Champions League finalists.
He has previously managed Espanyol and Southampton and City would need the Argentinian to break his duck quickly if he were to succeed as Guardiola's successor.
