By the end of three rounds, 16 men will secure berths into the main draw.
Halep and Dimitrov crack new heights ahead of Roland Garros.
Novak Djokovic takes the title in Rome, with a 4-6, 6-3, 6-3 triumph.
The Serb opens up a 3-0 lead and holds on to force a decider.
Highlights from the first set of the Nadal-Djokovic Rome final.
Before his semifinal in Rome on Saturday, Novak Djokovic took to Twitter to plead for help for flood-ravaged Serbia.
The Scot failed in his upset bid, but in the process he pulled off what may have been the shot of the week in Rome against Rafael Nadal.