Taking a closer look at three potential Celtic targets - either on loan or in permanent deals.
According to the print copy of Portuguese newspaper O Jogo, Celtic were one of the many clubs to have scouts at the Primeira Liga clash between Benfica and FC Porto at the weekend.
The match ended 0-0 but there were plenty of potential targets for Celtic to run the rule over.
Here we take a look at three players Celtic manager Ronny Deila may be interested in signing, either permanently or on loan:
Ruben Neves (FC Porto)
Ruben Neves is an 18-year-old defensive midfielder who played for 45 minutes against Benfica.
The teenager has featured 34 times for Porto this season but is predominantly used as a substitute. And while he is clearly highly-rated at his current club, a loan move to Celtic may not be the worst idea.
Of course the presence of Nir Bitton means Celtic are not exactly in desperate need of another defensive-minded midfielder but one so talented could be on Deila’s radar, especially when you consider the need for extra stability in that area in Europe.
Maxi Pereira (Benfica)
Uruguay international Maxi Pereira is out of contract in the summer and at just 30, and with plenty of experience, there are likely to be a number of clubs seeking his signature.
Could Celtic make a move for the right-back to offer more experience in that area of the pitch?
For free it would surely be a no-brainer on Deila’s part, provided Celtic could convince him to ignore any other offers that come his way.
Anderson Talisca (Benfica)
As unlikely as a loan move to Celtic may be, it would be no surprise if Deila was also keeping close tabs on Anderson Talisca – a young Brazilian who has burst onto the scene this season.
The 20-year-old can operate as an attacking midfielder, a secondary striker or a left winger and that versatility along with his flair would go down a treat at Celtic Park.
Clubs across Europe are surely monitoring his progress, but having scored 11 goals in his debut season at Benfica, would they really loan him out when he is already a first-team regular? Either way, keeping tabs on Europe's elite young talent is something we can expect Deila to be doing for the long term.