Celtic are expected to fight off interest from Benfica in their goalkeeper Fraser Forster.
The 25-year-old impressed sides across Europe with his performances in the Champions League last season, which included a fine display in a group-stage match against the Portuguese outfit.
Bhoys boss Neil Lennon has been insistent in his view that Celtic will not sell one of their prized assets, who was linked to Sunderland earlier in the transfer window following their sale of Simon Mignolet.
However, according to Sky Sports News, Benfica hope to lure the former Newcastle United stopper with the promise of playing in Europe's premier competition again.
Forster spent two seasons on loan at Parkhead before joining permanently from the Magpies last summer.
