Jurgen Klopp was seen tapping Liverpool's famous 'Welcome to Anfield' sign in the tunnel before he headed out on to the pitch.

Touching the sign is supposed to bring good luck to the players before a match, but the superstition does not normally extend to Liverpool's opposition.

Klopp, though, could not resist taking part in the tradition.

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Tradition: Dortmund manager Jurgen Klopp reaches up to touch the Anfield sign before heading on to the pitch

Liverpool faced Dortmund in their final pre-season friendly game before the Premier League begins next weekend.

Brendan Rodgers' side played five games while on their tour of the US, and lost to Manchester United in the final of the International Champions Cup.

Liverpool, who finished second last season, will begin their league campaign at home to the heavily-depleted Southampton.

Training: Liverpool players warm-up before their match against Dortmund, their final pre-season game

Signings: Dejan Lovren and Rickie Lambert warm up, they could face their former club next weekend

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