One Season, as well as Chengdu Blades for match-fixing in 2007 China League One season. In 2011, the anti-corruption movement had visibly improved the image of the CSL, with increases to attendance. Clubs such as Guangzhou Evergrande and Shanghai Shenhua began investing heavily in foreign stars. After former Fluminense midfielder Darío Conca transferred in 2011, some notable signings during the 2012 seasons included former Chelsea forward Didier Drogba and Nicolas Anelka, former Barcelona midfielder Seydou Keita and Fábio Rochemback, former Sevilla forward Frédéric Kanouté, former Blackburn Rovers forward Yakubu and former Borussia Dortmund forward Lucas Barrios. Former Japanese national team coach Takeshi Okada took up the reins as the new coach of Hangzhou Greentown, former Argentina national team coach Sergio Batista replaced Jean Tigana as Shanghai Shenhua's head coach, and former Italy national team and Juventus manager Marcello Lippi replaced Lee Jang-Soo as Guangzhou Evergrande's head coach. In 2012, Guangzhou Evergrande became the first Chinese team to defend their CSL title, and to win consecutive titles. However, eight-time champions of Professional League, Dalian Shide, had seriously financial problems during the entire season, especially after the arrest of club owner Xu Ming. They had planned to merge with Dalian Aerbin, the other CSL club of the city, but the Chinese Football Association blocked the merger at the end, as Dalian Shide failed to cancel their registration as a CSL club before the merger. So Aerbin effectively purchased and swallowed up Shide, including the club's famed academy and training facilities. Dalian Shide was officially dissolved on 31 January 2013. The country's most successful club had ceased to exist. In 2013, David Beckham became first global ambassador for CSL. In February 2013, Shanghai Shenhua was stripped of its 2003 Chinese Ji-A league title as part of a broad match-fixing crackdown. In total, 12 clubs were handed punishments, while 33 people, including former CFA vice-president Xie Yalong and Nan Yong, received life bans. Also in 2013, Guangzhou Evergrande Taobao won the Asian Champions League title, the first time a Chinese Super League team has won that award. In 2014, Guangzhou Evergrande became the first Chinese club to win four consecutive professional league titles. In 2015, ex-Tottenham midfielder Paulinho moved to Guangzhou Evergrande at the age of 27, Guangzhou Evergrande become AFC champions League champions for second time. In 2016, the Chinese super league became a rising power in the global transfer market. Brazil international