Jason Kerr of the Saints scored a 58th-minute penalty against the Basaksehir Tih Terim Stadium after the home goalkeeper was sent off. Sacha Boey, however, took the lead for just two minutes. Saints couldn’t really make the best of their man advantage. But Stevie May had a shot cleared offline, and Callum Davidson’s side set up a big night next Thursday in Perth with a play-offs spot up for grabs. Scotland's double cup champions survived an early assault at the stadium. It is named after Galatasaray but belonged to Basaksehir. Their home is currently being renovated. Mostafa Mohammad missed a sitter at six yards, and Kerem Akturkoglu struck the post from fifteen yards just five minutes later. Zander C Clark made an outstanding stop during the follow-up. The flag was raised but the Saints goalkeeper was quickly back on the field to stop Marco from scoring a header. Saints settled and Murray Davidson & David Wotherspoon had their efforts saved. David Wotherspoon only had a chance to shoot straight at him. The hosts were also strong in the second half. Berkan Kutlu scored a free header eight yards from the goal. Saints were presented with a gift after Fernando Muslera, a poor backpass, but Fernando Muslera was in danger. The Galatasaray skipper, who was under immense pressure from Chris Kane made an unexplainable decision to kneel. The ball bounced off Muslera's leg and into Kane's path and landed in the path of the Saints striker. Muslera was the one to pull Kane down. He was then given a straight yellow card. After a long delay Kerr, center back managed to keep his nerve and score the spot-kick in the corner of the goal past Berk Balaban (substitute goalkeeper). Saints did not maintain their lead. Reece device, an on-loan Manchester United right-back, attempted to get a pass to Boey from France, but he missed the ball. Celtic's debutant took advantage of this and hit a long drive into the corner. The Saints were almost denied another goal by Balaban. He lost the ball near May's corner flag but the substitute's attempt from a difficult angle was cleared. The 10 men won strongly. Jamie McCart was able to block Marcao's volley with a great head, and Clark saved Christian Luyindama’s header for a remarkable Perth result. What's next St Johnstone faces Motherwell at McDiarmid, in the Scottish Premiership. On Sunday, at 3 pm, St Johnstone will take on Motherwell. Galatasaray hosts the return leg at home on Thursday at 7 pm.