On June 23, 2017, panguva 2017 NHL Entry Draft, Schenn akanga kuchinjaniswa nokuda Flyers kuna St. Louis Blues mukutsinhana Jori Lehtera, mumwe 2017 wokutanga-kumativi sarudza (27th zvachose) uye munhu conditional 2018
wokutanga-kumativi pick. Mumwaka wake wokutanga neBlues, Schenn akaputika ndokuisa mabasa akakwirira mumapoinzi, anobatsira, uye zvinangwa. Akanyora rake rechitatu rebasa rake musi waZvita 5, 2017, mukukunda 4-3 pamusoro peMontreal Canadiens uye akatungamira Vatatu Nyeredzi dzeSvondo. Mwedzi wakatevera, Schenn akatumidzwa zita re2018 National Hockey League All-Star Game mushure mekurekodha mapoinzi makumi mana nemaviri mumitambo makumi matatu nemaviri. Akapedza mwaka aine 70 points mumitambo 82.