Celtic have tabled a bid for Peterborough United full-back Harley Mills, stepping up their summer recruitment as Brendan Rodgers continues to reshape his defence. [Football League World]

The move follows confirmation back in January that Kieran Tierney would return to Celtic Park this summer on a free transfer.

Tierney’s homecoming was sealed months ago, with Rodgers publicly confirming the deal during the winter window. The 27-year-old left-back is due to rejoin officially next month, bringing a wealth of experience and a direct upgrade in the starting XI.

Now, Celtic appear to be planning for the future with a move for Mills, an 18-year-old attracting serious interest in England. Fulham have reportedly already bid £1 million for the teenager, but it’s not yet clear whether Celtic’s offer matches or eclipses that figure.

The timing of this approach strongly suggests the end of the road for Greg Taylor, who has yet to agree a new deal and now finds himself pushed down the pecking order. Taylor has been a steady presence since arriving from Kilmarnock in 2019, but the return of Tierney and the likely arrival of Mills point to a clean break in that area of the pitch.

With Liam Scales more commonly used in central defence and Mitchel Frame still raw, Celtic’s intent is clear — reinforce the left-hand side now and lay the groundwork for the long term.

The Hoops are wasting no time as they prepare for the 2025/26 season, with the defensive rebuild now fully underway.