Tottenham's 2-1 home defeat to Stoke City on Sunday has worsened matters for manager Mauricio Pochettino, with the Argentine boss coming in for harsh criticism from fans.
With just 14 points from the first 11 games of the season, Spurs have yet to really impress, and striker Emmanuel Adebayor only added fuel to fire on Monday with damning comments about the squad's attitude to playing at White Hart Lane.
The recent turmoil has led to speculation that former Southampton manager Pochettino will look to have a full scale overhaul of his squad in January and next summer.
Improving his defence has to be on his list of priorities, with Younes Kaboul struggling recently and Vlad Chiriches strongly linked with a move to Italy in the last few days.
And now, according to the Daily Mail, Pochettino will look to make a swoop on his former club Espanyol in order to sign centre back Hector Moreno.
Pochettino signed Moreno from AZ Alkmaar in 2011, and he's gone on to make over 100 appearances for the Barcelona-based club, enhancing his reputation with some great displays in Spain.
The 26-year-old starred for Mexico at the World Cup in Brazil this summer, but suffered an injury against the Netherlands, which has ruled him out of action so far this season.
Pochettino must be confident that Moreno can recover from his broken tibia if he is to mount a January bid for the defender, whilst Manchester United have also been linked with a move for him, given that Louis van Gaal worked with him at AZ Alkmaar.
Moreno stands at just 6ft tall so isn't the tallest of centre backs, but could form a promising tandem with Federico Fazio - but the arrival of another left footed centre back could bring the future of Jan Vertonghen into even more doubt.