Northamptonshire promote from within as John Sadler replaces David Ripley

Durham thwarted by tenth-wicket pair as contest goes down to the wire

Record ninth-wicket stand puts visitors in total control at Wantage Road

Matty Potts, Chris Rushworth share seven wickets as hosts dismissed inside two sessions

Surrey's quest thwarted as they come up two wickets short despite five for Clark

Surrey's last-wicket pair post career-best scores before Gay and Keogh keep hosts in the hunt

Veteran claims 3-34 as Northants are bowled out 81 in arrears, Amla and Jacks build lead

Visitors grateful to century stand between Smith and Will Jacks before Northants hit back

Hammond, Lace and van Buuren fifties take hosts to six-wicket victory in Bristol

Tail-end resistance and Northants collapse brings hosts back into the contest