Official site of the England and Wales Cricket Board
Captain Steffan Jones helped Somerset maintain their 100 per cent record in the Pro Arabian Cricket Challenge as Sussex's top order was blitzed.
Seamer Jones did considerable damage with the new ball and came back to wrap up the Sharks' innings for 220, finishing with figures of 5-33.
Having successfully chased scores against Essex and the United Arab Emirates, Somerset made it a hat-trick - this time by four wickets - thanks to good starts to both innings.
Peter Trego and Carl Gazzard - a new-look opening duo formed in the absence of Marcus Trescothick - put on 130 for the first wicket.
All-rounder Trego crashed 94, including 10 fours and a six, before being held at long-off off the bowling of James Kirtley.
Gazzard failed to reach a half-century for the first time in three Pro ARCH innings, falling four short when he chipped a return catch to off-spinner Ollie Rayner - but he took his competition tally to 163.
From a position of 181 for one in the 38th over, however, Somerset's run-rate was suffocated by slow left-armer Tom Smith and off-spinner Rory Hamilton-Brown, who claimed two wickets each.
Earlier, Sussex's spin trio were among those who impressed with the bat as part of a dramatic recovery from 48 for five.
Jones' burst accounted for Matt Prior, Chris Adams, Chris Nash and Carl Hopkinson in his initial spell - and only disciplined efforts from Hamilton-Brown (37) and wicketkeeper Ben Brown (40) realigned things.
From a position of 127 for seven in the 34th over, Rayner and Smith combined to ensure a competitive total.
It was off-spinner Omari Banks who took the greatest punishment, three times struck for six down the ground - twice by Rayner, who fell for 42.
Smith, who claimed Andrew Flintoff and Stuart Law earlier in the week with his left-arm spin, finished unbeaten on 46.
Want to start playing cricket - or re-kindle your playing days?
Get all the latest features, news and action
Only a year and the Aussies are here - here's all the info you need
All the contact information and links to help you buy match tickets
Contact ECB by email, phone or fax - or feedback via ecb.co.uk
Want to watch some cricket? Find the matches you want to see
Get our news and scores feeds via RSS to your desktop or mobile
Enjoy our blogs, right across the cricketing spectrum, from players to volunteers
ECB publications for you to download as PDFs, plus other resources
Official site of the England and Wales Cricket Board