Chicken Bruschetta

Preheat outdoor grill on medium. Meanwhile, in 9-inch pie plate, mix 2 cloves garlic, crushed with press; 1 teaspoon oil; and 1/4 teaspoon each salt and pepper, then rub all over chicken. In large bowl, combine tomatoes, shallot, basil, vinegar, 1 teaspoon oil, and 1/8 teaspoon each salt and pepper. Let stand. Grill chicken, covered, 10 to 13 minutes or until juices run clear when thickest part of chicken is pierced, turning once. Transfer to cutting board. Let rest 10 minutes; slice. Cut remaining clove garlic in half. Rub cut sides all over bread, then brush bread with remaining 1 teaspoon oil. Grill 1 minute, turning once. Divide bread and chicken among serving plates; top with tomato mixture.