In large bowl, mix sugar, flour and cinnamon. Stir in peaches and lemon juice. Spoon into frozen crust. While second crust is still in pan and frozen, remove crimp with sharp knife. Remove crust from pan and center frozen crust upside down on top of filled pie. Let thaw 10 minutes; crimp edges together. Cut 2 or 3 slits in top crust. Cover edge of crust with pie shield or foil strips.