Chasing a revised target of 187 from a maximum 21 overs, Afghanistan slumped CARDIFF: Sri Lanka recovered from a dramatic batting collapse to knock over Afghanistan for 152 and seal a 34-run win for their first victory at this year"s Cricket World Cup on Tuesday. The Sri Lankans imploded from 144-1 to 201 all out in an innings delayed by nearly three hours because of rain at Sophia Gardens in the Welsh capital. Chasing a revised target of 187 from a maximum 21 overs, Afghanistan slumped from 34-0 to 57-5 then battled back through a 64-run stand between Gulbadin Naib (23) and Najibullah Zadran (43). Sri Lanka again responded and took the final five wickets for 31 runs, with recalled seamer Nuwan Pradeep getting 4-31. The 1996 World Cup winners lost their opening group game to New Zealand by 10 wickets. Afghanistan have two defeats from two matches, after a loss to Australia on Saturday. The error-strewn match in Cardiff featured 52 extras — Sri Lanka"s 35 was the second-highest scorer on the scorecard — to strengthen the feeling this was a contest between the two teams likely fighting to avoid last place in the 10-team group. The Afghans" only win at a World Cup remains the one over Scotland in 2015 but they"ll feel this match slipped from their grasp, especially when Sri Lanka were reeling at 159-6 after three wickets in one over from Mohammad Nabi. Sri Lanka, who made the fastest 10-over start to the tournament by racing to 79-0, lost their last nine wickets for 57 runs in 15.4 overs.