 Complete the following phrase:  In the 2013 season, Guangzhou Evergrande strengthened their squad by signing Chinese goalkeeper Zeng Cheng and Brazilian Elkeson. This proved to be beneficial to Guangzhou as they became the first team in China to win the Super League three times in a row. The club also won the 2013 AFC Champions League by defeating FC Seoul in the final on the away goals rule, after drawing 22 in the first leg in Seoul and 11 in the second leg in Guangzhou, becoming the first Chinese side to win the tournament since 1990. By winning the AFC Champions League, Guangzhou was assured a place in the 2013 FIFA Club World Cup, entering in the quarter-finals, beating the African champions Al-Ahly 20. In the semi-finals, they were defeated by the European champions Bayern Munich 30. In the third place match, the club lost against the South American champions Atlético Mineiro 32 and finished in fourth place. Guangzhou won its fourth and fifth consecutive Chinese Super League titles in 2014 and 2015, respectively. On 21 November 2015, the club won its second continental championship, defeating Al-Ahli 10 on aggregate in the 2015 AFC Champions League Final. In the 