Photo: Alan Shearer posts cheeky tweet behind the scenes at Sunderland

The former striker sneaked some Newcastle United memorabilia 'behind enemy lines' at Sunderland.

Alan Shearer interviewed Sunderland boss Sam Allardyce for the BBC on Thursday afternoon and joked on Twitter that he was forced to go 'behind enemy lines.'

As such, the Newcastle legend compromised by sneaking in a picture of himself celebrating a goal while playing for the Magpies.

Sunderland's rivalry with Newcastle needs no further documentation but it could be the Black Cats who take the upper hand in the coming weeks.

Indeed, Allardyce's men beat Crystal Palace on Monday night to take them within a point of Shearer's old club and, with Steve McClaren's side hitting poor form again, the opportunity is there for Sunderland to pull clear of their bitter rivals.

Allardyce is famed for getting teams organised and sorting them out defensively first and foremost. That was certainly evident against Palace but it's a question of whether Sunderland can keep it up. Right now, though, any Premier League side looks more capable of keeping their form up better than Newcastle.

Except for Aston Villa, that is.

Newcastle travel to Crystal Palace for their next top-flight clash, while Sunderland host Stoke City.

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