Fiorentina's away match at Genoa was abandoned due to extreme rainfall, while Roma-Sampdoria has also been suspended because of the weather.
Heavy rain in Italy led to the suspension of Roma's Serie A fixture against Sampdoria on Sunday, while Fiorentina's away match at Genoa has been abandoned.
After 28 minutes of Genoa-Fiorentina, with the score 0-0, the worsening weather made conditions impossible and the referee called a halt to the match.
There was no improvement and standing water on the pitch meant the decision was taken to abandon the game.
When the rain finally eased in Rome, the referee elected to play the rest of the match after two inspections, with the game resuming after a break of over an hour.