Kamindu Mendis' hard hitting dragged Sri Lanka over the line as they beat Zimbabwe by four wickets in the first of their Twenty20 series at Harare Sports Club Wednesday.Mendis blasted an unbeaten 41 runs off 16 balls to see the visitors to victory with five balls to spare after they had struggled earlier in their innings.Zimbabwe were put into bat and, with opener Brian Bennett scoring 81, reached 175-7 off their 20 overs, to which Sri Lanka replied with 177-6. Pathum Nissanka top scored with 55 runs.The second T20 international is also at the Harare Sports Club on Saturday.BRIEF SCORESSri Lanka 177 for 6 (Nissanka 55, Kamindu 41, Ngarava 2-19) beat Zimbabwe 175 for 7 (Bennett 81, Chameera 3 for 30) by four wickets