Glamorgan brought in leg-spinner Mason Crane and seamer Ned Leonard for Andy Gorvin and Sri Lanka’s Asitha Fernando, while Lancashire included left-arm spinner Tom Hartley and seamer Jack Blatherwick for Arav Shetty and Sir James Anderson, who picked up a side strain against Middlesex.
Stand-in skipper Josh Bohannon, the fourth Red Rose captain of the campaign, called correctly and had immediate reward as Tom Bailey bowled Zain Ul Hassan behind his legs first ball as the struggling opener missed a leg glance.
Blatherwick had Asa Tribe (8) caught behind and first change George Balderson claimed the big wickets of Kent-bound Glamorgan captain Sam Northeast, lbw for 20, and Colin Ingram, bowled for 13.
Kiran Carlson reached his 1,000 runs for the season when he moved on to 22, cutting Hartley for three, but was given out lbw to Balderson for 34.
Billy Root, in only his third Championship match of the season was caught behind for 10 off Balderson and Lancashire had made the most of the new ball to claim two bowling points by lunch, when Glamorgan were 114-6.
Chris Cooke, who had got going with four fours in an over off Tom Aspinwall, chipped in with 37 before he was leg-before to Bailey but a resolute stand of 82 between Van der Gugten and Mason Crane gave Glamorgan some respectability- helped by Lancashire’s reluctance to post a third man.
Both played sensibly as the score was doubled in the afternoon session for the loss of just two more wickets, van der Gugten going lbw to Balderson for 53 just before the break and Crane being bowled by Bailey for 42 just afterwards.
James Harris (13 not out) and Ned Leonard (12) ensured one batting point before Bailey yorked Leonard to complete his five-for.
Van der Gugten made his usual economical start with the ball and batting did not look easy, but Jennings took advantage of anything loose with nine boundaries, and partner Luke Wells (16 not out) was happy to see out the day to consolidate Lancashire’s advantage.
Lancashire’s Tom Bailey told Lancashire Sport:
“It’s a good day especially being none down going into tomorrow, a great day.
“We felt the pitch was almost completely different from each end, one felt relatively flat with not much happening, then a lot of seam movement (from the other).
“That seemed to change, but it was a nice wicket to bowl on.
“It would be nice to finish with a win. Ever since that game at Blackpool, a game we probably should have won, we won at Derby so we’ve put in good performances.
“These guys (Glamorgan) are going up to Division One so it would be nice to finish with a comprehensive win and show the cricket we should have played, to take that intio next year.”
Glamorgan’s Kiran Carlson told Sport Wales:
“It was a strange wicket initially, there was a bit of nip and it was hard to get going. That showed with the scores but luckily our lower order chipped in and got us up to a decent total.
“After a heavy roller and the pitch slowing up it’s going to be a tough grind but there’s still enough in the wicket.
“(Reaching 1,000 runs) is something every batter looks at, it’s the benchmark of a good season so I’m very happy to do it, a sign I’ve been batting pretty well.
“But the whole year has been about people chipping in, a lot of guys are averaging 45 plus.
“(Clinching promotion) was a bit of an anti-climax watching the rain and the wind at Derby then being told we’re promoted (while on the way home).
“But we’ve done so much hard work over the past few years and we fully deserve to go up, so this week’s about putting on a good show for the fans and ourselves to try to finish on a high.”
