Switzerland's Xherdan Shaqiri controls a ball during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548046
Switzerland's Johan Djourou gestures as he warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548042
Switzerland's Steven Zuber runs during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548040
Switzerland's Franсois Moubandje runs during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548038
Switzerland's Valon Behrami runs during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548036
Switzerland's goalkeeper Roman Burki, right, shakes hands with his teammate during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548033
Switzerland's Remo Freuler smiles as he warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548023
Switzerland's Mario Gavranovic, left, and Blerim Dzemaili play woth a ball during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548018
From left, goalkeepers' coach, Switzerland's goalkeeper Roman Burki, goalkeeper Yvon Mvogo and goalkeeper Yann Sommer warm up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5548006
Switzerland's goalkeeper Roman Burki, right, warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5547996
Switzerland's goalkeeper Roman Burki warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5547982
Switzerland's goalkeeper Roman Burki catches a ball during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5547976
Switzerland's goalkeeper Roman Burki gestures as he warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018. 21.06.2018#5547972
Switzerland's Gelson Fernandes runs during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018.21.06.2018#5547960
Switzerland's Ricardo Rodriguez warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018.21.06.2018#5547946
Switzerland's head coach Vladimir Petkovic walks during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018.21.06.2018#5547941
Switzerland's head coach Vladimir Petkovic walks during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018.21.06.2018#5547932
Switzerland's head coach Vladimir Petkovic walks during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018.21.06.2018#5547930
Switzerland's Michael Lang warms up during national soccer team's training session at the Kaliningrad Stadium in Kaliningrad, Russia, June 21, 2018.21.06.2018#5547926