Exclusive: Mark Hendry - Celtic Ready to Spend Big on Right Player

With Tierney's return for free and Nygren set to boost the first team, Celtic shift transfer strategy from long-term projects to instant impact ahead of European push.

In terms of value for money, it's difficult to remember a better period for the club. Kieran Tierney, by all rights is still a £20million plus player and he re-joined Celts on a free.

Callum Osmand is a striker with a big future ahead of him and Brendan Rodgers' side have snapped him up on cross-border compensation.