Twenty-five wickets fell on the opening day of the Specsavers County Championship match between Gloucestershire and Glamorgan at Cheltenham.
An extraordinary start to the annual Festival at the College Ground saw the visitors bowled out for 117 in 32.1 overs, before the Welsh county's seam attack demolished the hosts batting line-up to concede just a 24 run first innings deficit. A further 5 second innings wickets fell in the final session.
Glamorgan head coach Robert Croft said: "I certainly didn't expect a day like that when we arrived this morning. The ball did a bit of everything, swinging through the air, moving off the seam and bouncing like a tennis ball at times.
"The bowlers performed well and there was also some good catching. None of the batsmen seemed to come to terms with the pitch.
"It was in no way a dangerous wicket, but it was tricky to bat on. We still have players to go in who have dug us out of some holes this season and we just need to build as big a lead as possible."