Tillakaratne Dilshan and Chamara Silva added 100 for the sixth wicket to boost Sri Lanka to 217 for 5 at close of the first day of the second Test against the West Indies on Thursday. After fast bowlers Fidel Edwards and Jerome Taylor had reduced the Sri Lankans to 117 for 5, Dilshan (58 not out) and Silva (37 not out) posted their century stand from just 101 balls. Only 46.3 overs were possible on a rain-interrupted day after Chris Gayle had won the toss.