Place the sardines on a hinged wire cooking rack.
Brush with oil and season with salt and pepper.
Close, turn over, open the rack and oil and season the other sides.
Close the rack again.
Put all the salsa ingredients in a bowl with a little salt and pepper and mix well.
Leave to stand until ready to serve.
Place the fish in their rack on the barbecue and cook for about 3 minutes on each side until golden brown and cooked through.