Olivier Ntcham and his post Celtic struggles as Rolls Royce midfielder becomes Swansea scapegoat

There are few cases more curious in Scottish football than that of Olivier Ntcham.

When at his best for Celtic the French midfielder had a genuine claim to being the best midfielder in Scotland, able to control a game almost on his own.

One of the high water marks of the Brendan Rodgers era was a 5-0 demolition of Rangers at Parkhead in April 2018 and Ntcham was the chief tormentor of the Ibrox side.

At just 22 he combined physical gifts with extraordinary technique to leave players either twisted in knots or simply bouncing off him - a YouTube compilation of his every touch from that match runs to a full six minutes.

The former French youth international clearly had talent, having been signed by Manchester City and played in Serie A, and it looked like he was ready to achieve his full potential in Scotland.

His first season convinced Porto to offer more than £13million for his services, with that offer booted out by Celtic.

At the age of 26 though, where the likes of Kieran Tierney, Odsonne Edouard and Kris Ajer are shining in Europe's top leagues, a player who should be in his prime is turning out for Swansea in England's Championship.

With all due respect to the Swans, it's not where Ntcham probably saw his career going - so what's happened to the man who was so dominant on that April day?

Celtic fans don't need much of a refresh on his time at Parkhead. Interest from abroad turned his head, and despite some huge highs - that winner away at Lazio will go down in history - was accused of having downed tools.

Ntcham was eventually shipped out on a dream loan move to Marseille, only to see boss Andre Villas Boas resign in protest at his signing.

Successor Jorge Sampaoli didn't have much time for the former