Andrew Flintoff starred with bat and ball as England won a rain-affected fourth one-day international against South Africa by seven wickets at Lord's.England, set a revised target of 137 to win off 20 overs after rain disrupted South Africa's innings at 6-183 in 32.1 overs, made it with 14 balls to spare with Kevin Pietersen making 40 and Owais Shah 44 not out.Flintoff came in and smashed a rapid 31 off 12 deliveries to add to his 3-21 with the ball.Pietersen was out with 44 still needed but he