 Complete the following phrase:  In December 2018, Al Ain which celebrated the 50th anniversary participating in the 2018 FIFA Club World Cup, representing the host nation as the reigning champions of the UAE Pro-League. Al Ain beat Team Wellington from New Zealand in the first round and Espérance de Tunis of 2018 CAF Champions League champions to enter semifinal. On 18 December 2018, Al Ain defeated Copa Libertadores champions River Plate by penalties hosted in their home stadium Hazza Bin Zayed Stadium to enter the final for the first time in team history and became the first Emirati club to reach the decisive match. The 