When you talk of Pep Guardiola's mistakes in the transfer market at Manchester City, Cole Palmer is the name most people would throw at him.
But while the Chelsea forward has become one of the Premier League's best players since leaving the Etihad in the summer of 2023, a more recent sale has also haunted the Premier League champions.
When Julian Alvarez left for Atletico Madrid in August, even City boss Guardiola admitted "it could be a problem" if his squad picked up injuries.
But he could not have predicted the impact the Argentine forward was going to have in Spain after joining for a fee in the region of £81m.
The 24-year-old World Cup winner scored his 12th goal of the campaign on Wednesday to help Atletico beat Slovan Bratislava in the Champions League.
Alvarez also had a hand in their other two goals for Antoine Griezmann, making it 10 wins in a row in all competitions for the Madrid outfit.
Former Liverpool and Chelsea midfielder Nigel Spackman told TNT Sport: "He is a striker that is making the game look so easy at the moment."