WORCESTERSHIRE's County Championship match with Glamorgan will go to the final day with both sides still in with a chance of claiming victory.
Having been bowled out for 199 within an hour of day three, Worcestershire then took four wickets as Glamorgan set about chasing down the 331 needed to win the contest.
Charlie Morris was the pick of the Pears bowling attack with figures of 2-11 but Colin Ingram's battling knock of 82 kept the visitors in the contest.
Heading into the final day, Worcestershire hold a lead of 146 runs but still requiring six wickets for victory.
Worcestershire had set Glamorgan 331 runs to win after Charlie Morris (29) and Josh Baker (25*) had added some valuable runs to the total before the Pears lost their final four wickets and were bowled out for 199 within the first hour of play.
Morris then had David Lloyd (13) caught by Brett D'Oliveira at short mid-off early in Glamorgan's response.
Opener Edward Byrom and Colin Ingram then proved difficult nuts to crack as they began eating into the Worcestershire lead.
But Byrom's innings came to an unnecessary end as he was caught by Ed Barnard attempting a reverse sweep off Baker for 32.
Ingram was joined by Sam Northeast and the pair were content to block and frustrate the Worcestershire attack as the overs ticked by.
Glamorgan hit the 100 mark in the 34th over but Morris got a key wicket soon after as Northeast (13) top-edged a delivery down to Dillon Pennington at third man as the game again swung back in Worcestershire's favour.
Tea arrived with the visitors on 117/3 with Ingram three runs short of his half century, which he completed a few balls into the evening session.
But there was to be another breakthrough mid-way through the final session as Kiran Carlson (5) edged Pennington through to Gareth Roderick for the fourth wicket.
The run rate hovered around two an over as Ingram continued to plug away, with Billy Root blocking his way towards the end of play.
At the time of print, Glamorgan were 180/4 and needed 146 to win
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