Rangers have already beaten Athletic Bilbao in Spain...and they did it at the Nou Camp in Barcelona in front of 100,000 fans.
Barry Ferguson's side face a huge challenge when they play the La Liga high-fliers this week in the second leg of the Europa League quarter finals.
But they can take encouragement from the last time they played the Basque giants in their Spanish homeland.
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In 1974, Rangers were invited, along with Athletic Bilbao and Ajax to play in Barcelona's famous Joan Gamper Trophy, where three clubs from around the world play in a pre-season tournament.
The tournament was to celebrate Barcelona's 75th anniversary. Rangers had two years previously lifted the European Cup-Winners Cup at the Nou Camp and were drawn to face Athletic in the semi-final.
An astonishing crowd of 100,000 turned up to see Rangers win 1-0 thanks to a goal from Sandy Jardine three minutes before half time.
And even though it was a friendly, Athletic were reduced to ten men late on when Jose Maria Nunez was sent off for aiming a kick at Graham Fyfe.
Rangers manager Jock Wallace said: "It was a great result and I am delighted because we get to meet Barcelona in the final.
"And the atmosphere at the Nou Camp will be like a European Cup Final." Rangers faced the hosts in the final, who had Dutch legends Johan Cruyff and Johan Neeskens in their line-up.
But they went down to a 4-1 defeat despite a fine goal netted by Fyfe. RANGERS XI: Kennedy, Denny, Miller, Johnstone, Jackson, Jardine, Forsyth, McLean, Young, Fyfe, Scott.
