Juventus beat their Primavera youth team 6-1, but Arturo Vidal has a new knee problem to deal with.
The Bianconeri traditionally begin their season with an ‘in-house’ game between the A and B teams at the Villar Perosa ground.
Carlos Tevez opened the scoring within 120 seconds, wiped out by Roussos.
Tevez netted another on the rebound from Fernando Llorente’s crossbar, but missed a penalty before Stephan Lichtsteiner converted Andrea Pirlo’s assist.
Roberto Pereyra, Vitale and Buenacasa were also on target.
Vidal was on the bench but did not come on and Sky Sport Italia noted he had an ice pack strapped to his right knee. When spotted by the cameras, he tried to cover it with teammate Paul Pogba's shirt.
As this is the knee that went under the knife before the World Cup, there are concerns over how it has been handling the pre-season training regime.
The Chile international tried to reassure fans by posting a picture of himself with Giorgio Chiellini on Twitter.
“I am ready to play on Saturday in the Trofeo TIM,” he wrote.
That tournament is a pre-season test with 45-minute games against Milan and Sassuolo.