Although Bayern Munich will pose dangers to Juve from every area of the field, the Wolfsburg stopper has singled out two particular men for attention.
"Bayern's strength is on the wings, where they play two world-class players - Ribery and Robben," Barzagli told Tuttosport.
"The Frenchman may seem like he will drift out of the game, but then he will hit you unpredictably."
Barzagli has reminded the Bianconeri that there are potential pitfalls in every area of the pitch.
"Juventus will have to be very careful," added the Italian.
"They will also need to keep an eye on Mario Gomez up front. Bayern attack with their defenders too."
Juve want all three points at the Allianz Arena and they would do well to follow Barzagli's notes of caution on Wednesday evening.
Salvatore Landolina, Goal.com