DURHAM face 42 overs of batting this evening, which will determine whether they can get back into the match after conceding a first innings deficit of 79.
It looked like being much worse until Somerset lost three wickets for six runs in four overs after lunch. Despite a hard-hitting unbeaten 45 from Craig Overton, they were all out for 234 with Mark Wood finishing with five for 37.
Chris Rushworth had four for 70 and the vital wicket of top scorer Alviro Petersen, who made 78, went to Jamie Harrison.
He had the South African caught at slip by Paul Collingwood the ball after seeing him edge over the same fielder for four.
James Hildreth was first to go after lunch, caught down the leg side by Phil Mustard off Rushworth for 43 to end a stand of 79.
A superb swinging yorker from Wood took out Craig Kieswetter’s middle stump then Rushworth brought one back to bowl Peter Trego.
Alfonso Thomas hung around for eight overs to make one before Rushworth had him lbw, then Petersen and Overton took advantage of improving conditions to pepper the boundaries.
Petersen twice lifted Harrison over long-on for six, while Overton did the same against Scott Borthwick before flat-batting a short ball from Rushworth over the rop at long-on.
Wood completed his superb display by forcing George Dockrell to fend to gully then splattering Jamie Overton’s stumps.