Unable to improve upon his position Shandong Luneng Taishan were willing to let Guan leave at the end of the 2007 league season.

He transferred to second tier club Jiangsu Sainty at the beginning of the 2008 league season and was immediately placed as their first-choice goalkeeper within the team.

[4] Yasen Petrov, manager of Shijiazhuang, expressed that Guan would be the first penalty kicker of the club until he missed.

[11] Guan was the first choice keeper for the Chinese U-20 team before the 2005 FIFA World Youth Championship that was managed by Eckhard Krautzun, however he was ruled out after suffering an injury before the tournament by his own teammate Wang Yongpo.

He would go on to be promoted to the Chinese U-23 and was part of the squad that played in the Football at the 2006 Asian Games, however it was only after an impressive start to the 2009 Chinese Super League season with Jiangsu Sainty before Guan would be called up into Gao Hongbo's squad to face Kyrgyzstan in a 3–0 win on July 25, 2009, where he came on as a substitute for Zeng Cheng.