Alex McLeish has admitted “something doesn’t seem right” with Leigh Griffiths at Celtic.

The former Rangers and Scotland manager, speaking exclusively to Football Insider, insisted the 30-year-old has found himself in a “strange” situation after some decent form over December and January.

Griffiths started seven consecutive league games under Neil Lennon but was hooked at half-time against St Mirren, criticised by the Northern Irish boss and left as an unused substitute versus Kilmarnock.

Former Celtic star Frank McAvennie told Football Insider he heard there had been an argument between player and boss at half-time in the 2-1 defeat to the Saints.

McLeish insisted Griffiths needed to deliver on a consistent basis, rather than having one or two good games, but admitted he was still baffled by his fall down the pecking order.

McLeish told Football Insider assistant editor Russell Edge: “The sustainability factor is everything in football and it’s not about playing one or two good games, it’s about coming in (and performing regularly).

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“It is strange, isn’t it? He came in and got a couple of goals, and something doesn’t seem right, as you said. We don’t know the whole inner sanction when Celtic are in that kind of situation, so it’s difficult.

“I got Griff into a couple of Scottish squads at the beginning and I never quite got him when he had that wee spell out of the game after he and Brendan agreed he would step down for a while. A lot of it can be private.” 

Albian Ajeti took Griffiths‘ place in the starting XI against Kilmarnock and the Swiss striker marked his first start since November with a goal.

The Scotland international has a total of five league goals from 12 appearances this season, seven of which have come as starts.

In other news, Frank Lampard could do to Celtic revenues what Steven Gerrard has done to Rangers, according to a finance expert.