COLOMBO, January 16: Brothers Grant and Andy Flower both struck half-centuries to enhance Zimbabwe's prospects of winning the second and final cricket Test against Sri Lanka today.Zimbabwe, who had a first innings lead of 26, ended the third day at 241 for six to lead overall by 267 on a slow-turning pitch with two days left.Grant Flower, dropped by Sanath Jayasuriya at 17 in the second over of the morning, went on to his first half-century in the series.He made 52 in 174 minutes, with four fours, before being bowled by Jayasuriya's left-arm spin.Andy Flower played a sedate knock to remain unbeaten on 61 at the close, having batted 228 minutes and hit five fours and a six.The brothers were both involved in important partnerships that lifted Zimbabwe's hopes of squaring the two-Test encounter, following their side's eight-wicket defeat in the first match in Kandy.Grant and Murray Goodwin added 70 for the third wicket before Jayasuriya struck in the penultimate over before lunch by bowling Goodwin round his legs for 39.Lanka skipper Arjuna Ranatunga did not take the field due to a strained back, and acting captain Aravinda de Silva bowled his occasional off-breaks well.SCOREBOARDZimbabwe (1st innings): 251Sri Lanka (1st innings): 225Zimbabwe (2nd innings) (overnight 22-1): G Rennie c Kaluwitharana b de Silva 12, G Flower b Jayasuriya 52, A Whittall c Tillekeratne b de Silva 2, M Goodwin b Jayasuriya 39, G Whittall c sub (M Jayawardena) b Muralitharan 17, A Flower batting 61, A Campbell c Kaluwitharana b Anurasiri 37, C Wishart batting 14; Extras: (lb5, w1, nb1) 7. Total: (for six wickets in 104 overs) 241Fall of wickets: 1-22, 2-34, 3-104, 4-117, 5-129, 6-204Bowling: Pushpakumara 8-1-34-0, de Silva 19-4-48-2, Muralitharan 34-7-70-1, Anurasiri 19-7-41-1, Jayasuriya 24-9-43-2