CALLUM McGREGOR has warned his Celtic team-mates to shape up or suffer the consequences as the champions stumble towards the season’s finishing line. The Hoops blew the ideal opportunity to seal ...

“Of course, I need to step up a few things. But I know where I’ve come from and what I’m working on to be better. “There are still some details to improve and I feel I’ll be better next season. “Every ...