Place a chicken breast on a chopping board and slice into one side of the breast, cutting horizontally to create two thinner pieces of chicken. Cut each thinner section into half and repeat with the other chicken breast.
In a small bowl mix the marinade ingredients together and pour over the chicken. Stir to coat, cover the dish and put in the fridge for an hour.
When the chicken has marinated, spray a frying pan or griddle pan with low-calorie cooking spray and set on a medium heat.
Add the chicken and cook for 4 minutes on each side until the chicken is cooked through, no pinkness remains and the juices run clear. Discard any leftover marinade.
While the chicken is cooking, mix the mayo with 1 tbsp sweet chilli sauce and spread onto the bottom half of the bread rolls. Drizzle the top of the rolls with the remaining 1 tbsp sweet chilli sauce.
When the chicken is cooked, place 2 pieces on the bottom half of each of the rolls. Top with cucumber ribbons, lettuce and tomato and serve with your choice of accompaniment.