According to multiple reports, Duclair will make $1.7 million in 2020-21.
Duclair was an All-Star for the first time last season while posting a career-high 23 goals for the Ottawa Senators.
"Anthony is a dynamic and highly skilled player who is capable of being a dependable offensive contributor for our team," Zito said in a statement. "He possesses tremendous speed and goal scoring ability and earned an opportunity to be named an NHL All-Star last season. We're excited to welcome Anthony and look forward to what he can add to our team."