Burgermeister

Warwickshire 146 for 5 (44 overs). Ambrose 53, Clarke 8.

Frost attempted to sweep Wainwright and dragged the ball on to his stumps to perish for 35 and bring a disappointing end to a stout partnership of 85 in 21 overs.

Ambrose struck Kruis for four successive fours on the way to 50 from 58 balls with ten fours.

Clarke has just got off the mark by lifting Wainwright for a splendid straight six.