Raine, Potts dig in to thwart Essex's victory bid
Visitors were wobbling at 96 for 7, still in arrears, before eighth-wicket pair come to rescue
Visitors were wobbling at 96 for 7, still in arrears, before eighth-wicket pair come to rescue
Seamer's three-wicket burst limits hosts' progress and increases likelihood of draw in relegation battle
His unbeaten 140, plus 97 not out from Matt Critchley counter Durham's efforts of the opening day
Lees makes 94 before Porter's three-wicket burst redresses the balance in evening session