Kevin Pietersen made his first hundred in any format for 18 months as Surrey tied with Sussex in the Clydesdale Bank 40. Warwickshire and Essex claimed the two semi-final spots up for grabs.

The Clydesdale Bank 40 semi-final draw has been made. Somerset host Essex at Taunton, while Warwickshire go to Scarborough to play Yorkshire.

Warwickshire secured a place in the semi-finals of the Clydesdale Bank 40 after Imran Tahir inspired them to a seven-wicket win over Nottinghamshire.

An unbeaten century from Alastair Cook made sure Essex qualified for the Clydesdale Bank 40 semi-finals with a comfortable seven-wicket victory over the Group B winners at Headingley Carnegie.

James Franklin and Chris Taylor both hit centuries as Gloucestershire emphatically saw off Northamptonshire, but it was not enough to earn them a last-four spot in the Clydesdale Bank 40.