Born in Dailan, China, Long Tan hopes to become the first player born in the Asian continent to appear in a MLS match for the Sounders. Like Mike Azira, this is Tan's second stint as a Sounders trialist. Both players appeared in Seattle's reserve match against the Timbers last October.
Tan has spent time in China's second and third divisions, in addition to stints with teams in MLS, USL Pro and PDL. He also trained with China's U23 team ahead of the 2008 Summer Olympics but was not included on the roster.
Shanghai Seven Stars (China League Two): 2007
After playing youth soccer for the Zhong Shan school in Dailan and Shanghai United, Tan began his pro career with the Shanghai Seven Stars in China League Two, which is China's third division. He scored his first professional goal in a 2-1 defeat in April 2007.
Pudong Zobon (China League One): 2008
Tan joined now defunct Pudong Zobon FC in China League One, which is China's second division.During his time with the team, Tan scored 6 goals in 16 appearances during the 2008 season.
Atlanta Blackhawks (PDL): 2009
After his family relocated to the United States toward the end of 2008, Tan landed with the Blackhawks for the 2009 PDL season. Although the team struggled to get positive results, Tan led the team with 7 goals in 12 appearances. Atlanta finished the season at the bottom of the Southeast Division table with 12 points in 16 games, with Tan scoring nearly half of the team's 16 goals.
Tan happened to be teammates with current Sounders midfielder Alex Caskey and former Sounders striker Babayele Sodade during his time with the Blackhawks.
FC Tampa Bay (USSF Division 2): 2010
After failing to impress the Philadelphia Union enough in an open tryout to get called back to go on trial with the MLS expansion team, Tan signed with FC Tampa Bay (now known as the Tampa Bay Rowdies) for the 2010 USSF Division 2 season.
Although he again found himself on a team destined to finish at the bottom of the table, Tan managed to produce 3 goals and 2 assists in 25 appearances. The team finished with a 7-12-11 record in the USL Conference, although the team was 5-6-5 before his rights were traded to the Vancouver Whitecaps in July.
Vancouver Whitecaps (MLS): 2011 - 2012
After being traded to Vancouver, Tan went on trial with the Whitecaps in November 2010, hoping to earn a contract with the MLS expansion team. He signed with the team on March 11, a week before the start of the 2011 MLS season. Tan provided 1 goal and 2 assists in 13 appearances for Vancouver in 2011, in addition to 3 goals and 1 assist in 9 MLS Reserve League appearances. His goal with the first team made him the first Chinese-born player to score a goal in MLS.
2012 was a less productive season for Long Tan in Vancouver, as he only managed to get 28 minutes in 4 appearances before being traded to DC United on June 28.
Vancouver Whitecaps U23: 2011 - 2012
During his time in Vancouver, Tan also played for the Whitecaps U23 team. Between the 2011 and 2012 seasons, he made a total of 8 appearances, in which he scored 8 goals.
DC United (MLS): 2012
Tan played for DC United for the second half of the 2012 season. After the trade, he saw more minutes and was more productive than was the case with Vancouver in the first half of the season. Tan scored 1 goal in 231 minutes over 6 appearances with the first team. He added a goal in his only appearance with the team in MLS Reserve League. Tan also played a match while on loan to the Richmond Kickers, in which he played a full 90 minutes.
Orlando City SC (USL Pro): 2013
Tan was waived by DC United in January 2013. Less than 2 weeks later, he signed with Orlando City for the 2013 USL Pro season. With Orlando, Tan saw more playing time than he had seen since he played for FC Tampa Bay in 2010. Tan finished the USL Pro season with 5 goals and 3 assists, including 2 goals and 1 assist in the playoffs. Tan added a goal and an assist in the 2013 US Open Cup.