New manager Ronny Deila is now ready to pitch his players into the Champions League arena, with Tuesday's first-leg qualifier against KR Reykavic providing the first major test of his fledgling Parkhead career.
England goalkeeper Fraser Forster and Honduras left-back Emilio Izaguirre started their first games since the World Cup Finals in Brazil.
And Forster especially showed no signs of ring rust as he kept a clean sheet on his return.
Teenager Eoghan O'Connell partnered Virgil van Dijk in central defence, while Derk Boerrigter was also handed a start and Kris Commons and Anthony Stokes played up front.
Stokes had some decent chances for Celtic, and Michael Krmencik spurned some opprtunities for the Czech side. Tony Watt made his first appearance of pre-season as a 78th-minute substitute.
FULL MATCH REPORT - PAGES 48-49