Rafael Nadal says he will have to "play his best" to beat Dominic Thiem in Sunday's French Open final and secure an 11th Roland Garros title.
Nadal, 32, has won a record 10 titles in Paris and has lost only twice at the tournament since his debut in 2005.
The Spaniard has been beaten just twice on clay in the past two seasons and both defeats have come against Thiem.
"I have a very difficult match against a player that is playing great," 16-time Grand Slam winner Nadal said.
"I know I have to play my best if I want to have chances.