Heat oil over medium-high. Sprinkle the chicken with salt and pepper.
Add the chicken to the skillet. Cook for 3 minutes.
Flip and add the garlic to the pan between the chicken breasts. Cook for 2 minutes. Add the tomatoes. Cook until the chicken is 160 when checked with an internal thermometer, about another 5 minutes.
Remove the chicken to a serving platter. Cook the tomatoes until they begin to break down, another 4-5 minutes. Pour over the chicken. Serve immediately.