It's 20 years today that Wenger took charge of the Gunners.
Ranieri told the Daily Mail: "Arsene is fantastic. Twenty years in the same team. I cannot believe it.
"Now, managers change. In Italy [they change] every three matches. Some managers change in the pre-season. You can imagine the pressure in Italy.
"Our job is to live with pressure. Without pressure, we cannot do a good job."