In August 2008, Adaílton renewed his contract with Santos, until December 2009 and signed in February 2010 for FC Sion. He became a regular starter for the Swiss side and helped the club capture the 2010–11 Swiss Cup. He left Sion during the summer of 2012 for Henan Jianye.
In August 2008, Adaílton renewed his contract with Santos until December 2009 and signed in February 2010 for FC Sion. He became a regular starter for the Swiss side and helped the club capture the 2010–11 Swiss Cup. He left Sion during the summer of 2012 for Henan Jianye.