SAM Hain and Joe Leach shared the honours as Warwickshire and Worcestershire exchanged blows on an intriguing opening day of their LV= County Championship Division One derby at Edgbaston.

Warwickshire closed on 258-8 with 19-year-old Hain top-scoring with 82 in a measured and strong-minded innings compiled under pressure with his team in trouble.

Most of that trouble was caused by 24-year-old seamer Leach, who continued his stylish return to first-team colours in place of the injured Gareth Andrew.

Leach ended the day with 5-68 in only his second five-wicket haul in first-class cricket.

With the ball moving around all day, batting was never easy and, while Warwickshire look set for only a moderate total, their strong seam attack will expect to cause plenty of problems when their turn comes.

Leach said: "We couldn't have asked for more really. We got a couple of wickets early and then it was just a long, hard slog trying to grind them down and keep taking wickets.

"We are happy with the position we are in at the end of the day.

"You have to try to keep sides in check and I thought we did that today. They never got away from us at any stage.

"The main ethos about the way we go about our bowling is to make sure we are really disciplined.

"We haven't got anyone with express pace in our attack but we try to squeeze teams to death and we did that well today.

"In terms of executing a plan of bowling economically, it is probably our best day's bowling this season."

After bowling Somerset out for 90 last week, Worcestershire's three-pronged seam battery of Leach, Charlie Morris and Jack Shantry took up where they left off, reducing the home side to 53-3.

Leach soon dismissed Varun Chopra, caught at second slip for three, and the in-form Ian Westwood, adjudged lbw to one that looked rather high.

William Porterfield dug in for 29 before glancing Shantry down the leg-side to wicketkeeper Ben Cox.

Warwickshire reached 70-3 at lunch, the visitors having bowled well and been unlucky not to pick up more wickets.

Hain and Laurie Evans batted watchfully to add 87 in 30 overs for the fourth wicket before, just after posting his first half-century of the season, Evans mis-pulled Leach to mid-on to fall for 50.

Leach soon struck again when he sent Tim Ambrose's middle stump flying.

That left the home side on 142-5 but Hain found another resolute partner in Rikki Clarke and they added 73 before both perished to the new ball after tea.

Leach trapped Hain lbw with an excellent delivery and then Morris had Clarke pouched by Moeen Ali.

Keith Barker and Chris Wright added an unbroken 27 in the closing overs of the day, which could be handy runs in the context of a likely low-scoring game.

Moeen is in Worcestershire's team having been allowed to play by the England and Wales Cricket Board, but Ian Bell has not been released and Warwickshire are also without Jonathan Trott.

He was not considered for selection to "let the dust settle," as director of cricket Dougie Brown put it, following Trott's abrupt retirement from international cricket.