Shunsuke Nakamura's 87th minute goal snatched an important victory for Celtic at St Mirren, as Rangers eased to a 4-2 home win over Gretna.

It means that Celtic remain within four points of their city rivals, who head the Scottish Premier League.

St Mirren
Mark Howard, Will Haining, Ian Maxwell, John Potter, David van Zanten, David Barron, Andy Dorman, Gary Mason (Mark Corcoran), Hugh Murray, Craig Dargo (Stewart Kean), Billy Mehmet

Celtic
Artur Boruc, Gary Caldwell, Andreas Hinkel, Stephen McManus (Darren O'Dea), Lee Naylor, Scott Brown, Massimo Donati, Aiden McGeady, Barry Robson (Shunsuke Nakamura), Scott McDonald, Georgios Samaras (Chris Killen)