Thailand’s Ratchanok Intanon and mixed doubles duo Sapsiree Taerattanachai and Dechapol Puavaranukroh face tough opponents in the semi-finals of the Thailand Open on Saturday. World No.8 Ratchanok defeated Denmark’s Line Christophersen 21-8, 21-8 in the women’s singles quarter-finals at Muang Thong Thani’s Impact Arena in Nonthaburi province on Friday. In the semi-finals, the Thai will take on top seed Tai Tzu-ying of Taiwan who defeated Chinese eighth seed He Bingjiao 21-10, 14-21, 21-18 in a seesaw quarter-final match. Dechapol and Sapsiree had few problems in their 21-15, 21-8 quarter-final…