Question: What club did  a Swiss footballer primarily recognised as a right-back who signed for a professional football club in 2013 based in Old Trafford, Greater Manchester, England ?

Related documents: [0]  [DOC] Manchester United Football Club is a professional football club based in Old Trafford, Greater Manchester, England, that competes in the Premier League, the top flight of English football. Nicknamed "the Red Devils", the club was founded as Newton Heath LYR Football Club in 1878, changed its name to Manchester United in 1902 and moved to its current stadium, Old Trafford, in 1910. [END] 
[1]  [DOC] Saidy Janko (born 22 October 1995) is a Swiss footballer who plays for French club Saint-Étienne. Although he is primarily recognised as a right-back, he is equally capable of playing on the right wing. Born in Zürich to a Gambian father and a Swiss/Italian mother, Janko began his career with FC Zürich before signing for Manchester United in 2013. After a loan spell with Bolton Wanderers, Janko moved to Scottish club Celtic in 2015. He spent the 2016–17 season on loan to Barnsley before moving to Saint-Étienne permanently in July 2017. He has played international football for Switzerland up to under-21 level. [END]  
Answer: Saint-Étienne
Saint-Étienne