Sri Lanka pacer Lasith Malinga on Monday said their second World Cup match against Afghanistan is a "must-win" game for the Islanders. Both Sri Lanka and Afghanistan suffered defeats in their tournament openers and will square off against each other here on Tuesday. While Sri Lanka suffered a 10-wicket loss to New Zealand, Afghanistan were beaten by seven wickets by defending champions Australia. "We need a must-win game in this competition, we need a must-win game tomorrow. We will try our best in accuracy and tactically, everything hopefully will be there tomorrow," Malinga said on the eve of the Afghanistan game.