John Terry cracked a 'spygate' joke at Leeds United with former Chelsea teammate, and Wembley rival, Jody Morris.
The pair will be in opposite dugouts at the end of the month as Derby County and Aston Villa go head to head for a place in the Premier League.
On Wednesday, the Rams became the first side in Championship play-off history to overcome a first-leg home defeat to progress to the final.
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It was made all the sweeter for boss Frank Lampard that their semi-final victory came against Leeds.
Marcelo Bielsa's side came under scrutiny earlier this season when they send a 'spy' to Derby's Moor Farm training ground to observe and uncover tactical secrets from a Rams training session.
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Leeds had already beaten Derby three times, with fans of the Elland Road club poking fun at Lampard - but the ex-West Ham and Chelsea man would have the last laugh .
But now his old teammate Terry has got himself in on the joke while enjoying a drink with Morris, mimicked binoculars to the camera.
Terry is currently Villa's assistant manager. He had a short loan spell at Nottingham Forest during the early years of his career.
