Allan McGregor involved in 'incident' as Craig Levein poised to name squad

• Rangers goalkeeper Allan McGregor received head and back injuries during an incident in Glasgow last night

The club would not elaborate on McGregor's condition, though his injuries are not thought to threaten his place in the team for Sunday's Old Firm derby.

The news comes as McGregor is expected to be named in the Scotland squad today for next week's friendly against the Czech Republic following his ban incurred over a drinking incident last March during George Burley's tenure. A Rangers spokesman said: "We are aware of an incident involving Allan McGregor in the city centre and we have no further comment to make."

McGregor is said to have received a graze to his back after allegedly being attacked by up to three men in Bath Street. It was reported he had been attending a Celtic player's birthday party at a nightclub when he was hurt.

He later underwent X-rays at a private clinic, according to the paper. Strathclyde Police said it had not received a report of the incident.

Levein had earlier warned the Rangers trio of Kris Boyd, McGregor and Lee McCulloch to be big enough to handle a hostile reception from supporters if their international exiles end next week.

Today sees Levein name his first squad since taking charge. Boyd, McGregor and McCulloch are all expected to return to the fold.

Striker Boyd and midfielder McCulloch both controversially withdrew themselves from the international stage under the reign of former manager George Burley, while goalkeeper McGregor recently saw his lifetime ban for his part in the 'Boozegate' saga overturned. Levein said: "Everybody who has been out in the past – for whatever reason – shouldn't let that hamper Scotland's chances. Now if those lads have indicated they do want to come back then they've got to have broad shoulders.

"They're not stupid. They know there will be an element of our support who don't think they should be there. That will apply whether they start or whether they're standing on the touchline waiting to come on, whether they miss a chance, or McGregor doesn't make a save. But my job is to pick the team that has the best chance of getting us to the finals. We need to build some momentum and get everybody onside, so it's my decision to say to these guys, 'Let's everybody come back and try to work together.

"It's 1998 since we last qualified for a major championship and I think it would be foolish to allow something that's happened in the past to divide the camp or divide the relationship between the players and the supporters." Meanwhile, Wigan defender Gary Caldwell – who endured a torrid afternoon yesterday in a 3-0 defeat at home to Tottenham – has called for an end to players picking and choosing when they play for Scotland.

As well as Boyd and McCulloch not wanting to play under Burley, there were a raft of call-offs for friendly matches during the former manager's reign. Caldwell said : "Players have to take a look at themselves. If you're going to play for your country then, whenever you are asked, you cannot pick and choose what games you want to play. That's down to the players – that's nothing to do with the manager or anyone else. It's individuals. Personally, if I'm picked then I'm turning up – and I think we need that from everyone."

Spain coach Vincente Del Bosque claims Scotland could be his side's biggest threat in qualifying. He said: "To me, the Czechs are a team in transition. They have had some excellent players in recent years, but, perhaps, right now they are not at their best. Scotland could be the biggest danger."