Haris Seferovic got Switzerland's European Championship qualifying up and running with the first in a 4-0 win in San Marino.
Josip Drmic admits Switzerland badly need goals in San Marino on Tuesday in their European Championships qualifier.
Milivoje Novakovic's late penalty earned Slovenia a 1-0 win over Switzerland in Thursday's European Qualifier in Maribor.
Switzerland coach Vladimir Petkovic has warned players against complacency as he bids to get his reign up and running.
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"Will be a dour game Sunday no doubt. Given our forward restrictions we would struggle to go in all guns..."