Cristiano Ronaldo converted two spot-kicks in Turin on Saturday as Juve took another step towards the Serie A title.
The Portugal international cancelled out Duvan Zapata’s opener before securing a point in the 90th minute after Ruslan Malinovskiy had restored Atalanta’s lead.
Sarri, whose side are eight points clear at the top with six games to play, hailed Ronaldo’s ability to handle the pressure.
“He is a champion with his feet but also with his head,” Sarri told a news conference.
“He manages to handle the pressures he has on him in an incredible way.”