Durham 246 (Lees 99, Tongue 5-39) and 79 for 1 lead Worcestershire 213 (Fell 44, Leach 42*, Rushworth 5-56) by 112 runs
Chris Rushworth joined Graham Onions as Durham's highest first-class wicket-taker after notching a five-wicket haul to dismiss Worcestershire for 213 in their LV= Insurance County Championship clash at Emirates Riverside.
Rushworth was at his imperious best to claim figures of 5 for 56 to put the hosts in a strong position and move level with his former team-mate with 527 first-class strikes for Durham. Brydon Carse and Ben Raine were also on point, although late resistance from Joe Leach kept Worcestershire in the game.
Although the home side lost Alex Lees early in their second innings, Scott Borthwick and Will Young held firm to leave the north-east outfit in control of the contest with a lead of 112 runs.
Durham made a strong start to day two through Rushworth, who began the day by dismissing Daryl Mitchell for the ninth time in his first-class career, pinning the opener lbw with an inswinger. Jake Libby performed well in tough conditions, mustering 24 before he was undone by a brilliant delivery from Raine.
The seamers were on the mark and did not allow Jack Haynes to settle. In his second spell, Rushworth removed Haynes lbw for 8 to reduce the visitors at 60 for 3. Brett D'Oliveira battled with Tom Fell to take Worcestershire into the lunch break, but the pressure resumed immediately after the restart.
Fell survived a close lbw shout against Raine, but the right-armer plugged away and removed D'Oliveira for 10 in his next over. Fell offered solid resistance, grinding his way into the forties amid excellent bowling from the hosts. He was given a life by Borthwick, who put down a routine chance at second slip off Raine. The Durham captain's blushes were spared by Carse as he skittled Fell, taking his off and middle stump out of the ground.
Rushworth whittled through the lower order from the Lumley End, breaking through Riki Wessels' defences tbefore pinning Ed Barnard on the crease. Mark Wood and Carse reduced the visitors to nine down by using their pace to prise out Ben Cox and Josh Tongue.
However, Leach frustrated the hosts with a vital knock of 42. The Worcestershire captain produced a fifty partnership with Morris to bring his team within 33 of Durham's first-innings total. Rushworth wrapped up the innings with his record-equalling scalp to bowl Morris, earning his 28th five-wicket haul in the process.
Worcestershire claimed the vital wicket of Lees before the end of the day, but Young and Borthwick put together an unbeaten stand of 51 to leave Durham in a formidable position at 79 for one in their second innings.