The pair were frozen out for victory over Atalanta last week.
“I won’t take back what I said, though I’m glad they reacted,” said Zeman .
“Aside from the positive performances, they did well for Italy over the last week. I haven’t spoken directly to De Rossi or Osvaldo.
“I know that De Rossi has a long contract, wants to stay here and there are no problems. I expect more from important players, that’s all.”