With a yellow card against his name, Breel Embolo drops to the bench having led the Swiss attack for their goalless draw with France in their final group game.
Neither team has previously made the knock-out phase of a European championships finals.
The winner in Saint-Etienne will face either Croatia or Portugal in the quarter-finals in Marseille next Thursday.
Poland coach Adam Nawalka made four changes, three in midfield, from the side which won their final group game 1-0 against Ukraine.
Borussia Dortmund's Lukasz Piszczek comes in at right-back and will team up with right winger Jakub Blaszczykowski, who scored the winning goal off the bench against Ukraine, who staarts against Poland.
Polish hot-shot Robert Lewandowski, the top scorer in qualifying with 13 goals, has yet to open his account in France and will play just in front of Ajax forward Arkadiusz Milik.
Switzerland (4-2-3-1)
Yann Sommer; Stephan Lichtsteiner (capt), Fabian Schaer, Johan Djourou, Ricardo Rodriguez; Valon Behrami, Granit Xhaka; Xherdan Shaqiri, Blerim Dzemaili, Admir Mehmedi; Haris Seferovic
Coach: Vladimir Petkovic (SUI)
Poland (4-4-2)
Lukasz Fabianski; Lukasz Piszczek, Kamil Glik, Michal Pazdan, Artur Jedrzejczyk; Jakub Blaszczykowski, Grzegorz Krychowiak, Krzysztof Maczynski, Kamil Grosicki; Arkadiusz Milik; Robert Lewandowski (capt)
Coach: Adam Nawalka (POL)
Referee: Mark Clattenburg (ENG)