Sky Sports suggest that Benfica have lodged an official bid for Celtic goalkeeper Fraser Forster.
Jorge Jesus has been keen on the 25-year old gloveman for most of the summer transfer window and tabled an undisclosed bid for the former Newcastle United man.
However, Celtic boss Neil Lennon is determined to keep Forster in Glasgow after losing key midfielder Victor Wanyama and star striker Gary Hooper to Southampton and Norwich City respectively this summer.