Luiz Guilherme da Conceição Silva (born 16 June 1986), commonly known as Muriqui, is a Brazilian professional footballer.

Considered as a talented player, he was loaned to several higher level Brazilian clubs including Vasco da Gama, Avaí and transferred to Desportivo Brasil in 2008.

[8] In season 2010, Muriqui scored 13 goals in 14 appearances as Guangzhou finished first place in the League One and won promotion back to the top flight at the first attempt.

Although Guangzhou signed a few strong players to strengthened the team's attacking power including Argentinian Darío Conca and Brazilian Cléo in the 2011 league season, Muriqui was still the most important part of the club.

On 4 May, Muriqui scored a hat-trick in a 2011 Chinese FA Cup match which Guangzhou Evergrande beat China League One side Guizhou Zhicheng at Yuexiushan Stadium.

In a hearing held by Chinese Football Association 4 days later, the CFA believed that Muriqui struck Zhao Junzhe in the conflict, which resulted in a ban of 5 matches (including reserve league) and him being fined ¥25,000.

[9] Muriqui expressed his disappointment about the ban which he believed to be unfair in his Weibo and said he would leave China at the end of the season.

[11][12] At the start of the 2012 season, Muriqui helped Guangzhou win the 2012 Chinese FA Super Cup by beating Tianjin Teda 2–1 on 25 February.

[14] His three goals in the group stage ensured Guangzhou Evergrande to reach the knockout phase of the AFC Champions League.

[15] On 19 September, Muriqui was injured after being tackled heavily by Osama Al-Muwallad during a Champions League match against Al-Ittihad at Prince Abdullah al-Faisal Stadium.

[citation needed] Muriqui started the 2013 season by scoring a goal and an assist in the first round of 2013 AFC Champions League group stage match, a 3–0 home victory over J.League side Urawa Red Diamonds.

[21] Muriqui scored his seventh and eighth Champions League goals in both legs of round of 16 against Australia's A-League side Central Coast Mariners while Guangzhou won 5–1 on aggregate.

[25] He hit a brace in the second leg at Tianhe Stadium in a 4–0 home victory against Kashiwa Reysol on 2 October, bringing his tally to 13 goals in 12 Champions League games.

Although Muriqui caught up the first match of the season against Melbourne Victory in the 2014 AFC Champions League just in time, he was substituted off by Liao Lisheng when Guangzhou was losing 2–0 in the first half.

He scored twice in the first leg of the Round of 16 in the 2014 AFC Champions League, which ensured Guangzhou beat J.League side Cerezo Osaka 5–1 at Nagai Stadium.

[37] Liu Yongzhuo, chairman of Guangzhou Evergrande, promised that the club would resign Muriqui in 2017 after he finished his contract at Al Sadd.

[43] On 31 August 2016, Muriqui suffered an injury of fibular collateral ligament in his left knee in the first leg of 2016 J.League Cup quarter-finals against Avispa Fukuoka.

[51] He made his return debut on 19 July 2017 in a 4–2 defeat against city rivals Guangzhou R&F at Yuexiushan Stadium in the first leg of 2017 Chinese FA Cup fifth round, coming on as a substitute for Zhang Wenzhao in the 57th minute.

[55] Muriqui was named in Guangzhou's squad for the 2017 AFC Champions League on 15 August 2017 after Paulinho's leave for FC Barcelona.