Chicken Gyros with Cucumber Salsa and Tsatsiki

Name: Chicken Gyros with Cucumber Salsa and Tsatsiki
Ingredients: 5 English cucumbers ; divided; 10 1/2 ounces Greek yogurt; 1 teaspoon fresh lemon juice ; divided; 5 garlic cloves ; minced, divided; 1 pint Cherry tomatoes ; quartered; 1 small red onion ; halved and thinly sliced; 1/3 cup chopped flat-leaf parsley; 1/4 cup chopped mint; 1/4 cup Extra-Virgin Olive Oil; 1 rounded teaspoon dried oregano; 1 rounded teaspoon dried rosemary ; crumbled; 4 pieces Pita bread; 4 Skinless, boneless chicken breasts ; roasted, then shredded; 1 cup Romaine ; shredded