Xherdan Shaqiri (top) of Switzerland shoots to score during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. Switzerland won 2-1. (Xinhua/Liu Dawei)

Switzerland's players celebrate victory after the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. Switzerland won 2-1. (Xinhua/Liu Dawei)

Blerim Dzemaili (2nd R) of Switzerland vies with Nemanja Matic (2nd L) of Serbia during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Chen Cheng)

Breel Embolo (C) of Switzerland shoots during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Liu Dawei)

Fabian Schaer (L) of Switzerland vies with Aleksandar Mitrovic of Serbia during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Chen Cheng)

Nemanja Matic (L top) of Serbia competes for a header with Manuel Akanji (R top) of Switzerland during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Liu Dawei)

Manuel Akanji (bottom) of Switzerland vies with Aleksandar Mitrovic of Serbia during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Liu Dawei)

Manuel Akanji (bottom) of Switzerland vies with Aleksandar Mitrovic of Serbia during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Liu Dawei)

Blerim Dzemaili (R front) of Switzerland vies with Branislav Ivanovic (L front) of Serbia during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Chen Cheng)

Ricardo Rodriguez (R) of Switzerland vies with Aleksandar Mitrovic of Serbia during the 2018 FIFA World Cup Group E match between Switzerland and Serbia in Kaliningrad, Russia, June 22, 2018. (Xinhua/Liu Dawei)