Rafael Nadal beat world number one Novak Djokovic 7-5 6-3 to win the Rome Masters, which was postponed because of rain on Sunday.
The victory moves the Spaniard back to second in the world rankings.
Nadal broke first in the fifth game of the first set, but Djokovic broke back straight away.
Nadal then seized the advantage once again, breaking in the 11th game and going on to take the first set 7-5.
The six-times French Open champion continued to control the match at the start of the second set, breaking the Serbian once again to go 2-0 up.
Djokovic doubled-faulted at match point, handing Nadal a record 21st Masters Series title.
Nadal said: "I am happy that I won in Rome without losing a set against the best players in the world like [Tomas] Berdych and [David] Ferrer and Djokovic.
"I will have this trophy in my bedroom. It is a dream. [I have] the confidence I am playing well and this comes when I play at the right level. Hopefully I will keep playing like this."
Djokovic said: "I think that the match today was quite close, even if he won in straight sets. If you don't use the opportunities against Rafa he gets momentum. I made a lot of errors which should not happen when you play against Nadal."