COMMENT By Will Butcher

Celtic would boost their chances of reaching the knockout stages of the Champions League by signing Manchester City midfielder Fabian Delph.

Sky Sports claim that City are holding out for £13million to sign the former Leeds midfielder, but the Potters are only willing to spend £10million to lure him away from the Etihad.

It is said that Stoke are still in talks to sign the 27-year-old, after being interested in the England international for much of the summer.

Celtic have completed three new signings this summer in Oliver Ntcham, Kundai Benyu and Jonny Hayes, but are yet to complete a marquee signing.

Football Insider considers why signing Delph would be a huge signing for the stature of the club as they enter the Champions League with the dream of reaching the last 16.

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Here are three reasons why, including the future of a midfielder that could be about to join a Premier League side: