Al Ain goalkeeper Khalid Eisa saved the decisive penalty to earn his team a spot in Saturday's final where they will face Spain's Real Madrid or Japan's Kashima Antlers.
River Plate's Gonzalo Martinez had the chance to put the Argentine team 3-2 ahead in 69th minute from the penalty spot but hit the crossbar.

Hussein El Shahat of Al Ain and his team mates celebrates after winning the penalty shoot-out during the FIFA Club World Cup UAE 2018 Semi Final Match between River Plate and Al Ain at Hazza Bin Zayed Stadium on December 18, 2018 in Al Ain, United Arab Em

Image credit: Getty Images

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Al Ain got off to a dream start when Marcus Berg, starting for the first time this tournament after battling a virus, scored in the third minute with a header from a corner.
River Plate quickly turned things around, however, as forward Santos Borre scored twice to put the visitors 2-1 ahead after 16 minutes.
Al Ain's Caio equalised for the home side in the 51st minute with a right-footed shot from close range sending the ball into the bottom left corner.
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