The Nastase Tiriac Trophy final between unseeded Lucas Pouille and Fernando Verdasco scheduled for Sunday has been postponed because of rain.
The final will now be played on Monday, with Pouille appearing in his first career ATP World Tour final and Verdasco seeking his seventh title.
The doubles final was suspended on Sunday after Florin Mergea and Horia Tecau won the first set against Chris Guccione and Andre Sa 7-5. The match will restart on Monday.
Wednesday's matches had also been lost because of rain.