Top seed and defending champion Novak Djokovic will face second seed Roger Federer in Sunday's Italian Open final after both claimed straight sets wins.
Djokovic defeated Spanish seventh seed David Ferrer 6-4 6-4 while Federer defeated Swiss compatriot Stan Wawrinka 6-4 6-2 at the Foro Italico.
But Djokovic was unhappy about the state of the clay court after holes appeared near the baseline.
"It's dangerous to really play in these conditions," the Serb said.
"It's obvious the court is not where it's supposed to be, condition-wise.
"We had some places where the holes are really deep.