article_snippet.sent: To hear Leigh Griffiths tell it, the intervention staged by Celtic boss Ronny Deila and assistant John Collins was definitely closer to a kick in the what-nots than it was a pat on the back.
article_snippet.sent: Clearly demanding Celtic boss Ronny Deila and original gym rat assistant John Collins did not hold back in dealing with the gifted but wild natural talent, wielding a big stick in a bid to persuade Leigh Griffiths that the carrot wasn’t such a bad alternative to chips and tea cakes.
article_snippet.sent: Celtic manager Ronny Deila (left) congratulates Celtic's Leigh Griffiths (right) after the final whistle .
article_snippet.sent: It wasn’t a bad night’s work,’ Celtic manager Ronny Deila (left) says with a smile.
highlights_snippet.sent: Leigh Griffiths revealed that Ronny Deila and John Collins warned Leigh Griffiths .
  