The 34-year-old midfielder joined the Gers permanently during the summer transfer window and has been simply outstanding for Steven Gerrard’s side.
Davis is pleased to see the progress his former teammates at Southampton – Fraser Forster and Mohamed Elyounoussi – are making at Celtic this season.
The Northern Ireland midfielder knows all about the duo as he spent time with them at Southampton prior to his move to Rangers on loan last season. Now, they are playing for arch-rivals Celtic.
Both the players endured a difficult time at the Premier League club, but they are doing brilliantly for the Scottish champions.