Worcester Warriors beat Wasps for the first time since the Coventry side moved to the Midlands as they hung on for a bonus-point victory at Sixways.
Warriors looked well on course against their injury-ravaged opponents when Will Chudley's try followed first-half efforts from Gareth Simpson, Duhan van der Merwe and Ted Hill.
Flanker Tom Willis' late try gave Wasps a chance to snatch it.
But experienced Jimmy Gopperth failed with his tough touchline conversion.
Wasps, whose other tries came from hooker Dan Frost, one in each half, New Zealander Vaea Fifita and scrum-half Sam Wolstenholme, came away with two bonus points.
But it was still a first Premiership win for Worcester over their rivals since 2013.
More to follow.
Worcester Warriors: Shillcock; Nanai, Venter (co-capt), Beck, van der Merwe; Smith, Simpson; Sutherland, Annett, Judge, Garvey, G Kitchener, Hatherell, Hill (co-capt), Vailanu.
Replacements: Baldwin, Waller, Tyack, Batley, Lewis, Chudley, Searle, Lawrence.
Sin bin: Nanai (2) Kitchener (64)
Wasps: Watson; Kibirige, McHenry, Gopperth, Bassett; Umaga, Porter; Hislop, Frost, Toomaga-Allen, Fifita, Stooke, Shields (capt), Young, T Willis.
Replacements: Oghre, West, Millar-Mills, de Chaves, Carr, Barbeary, Wolstenholme, Minozzi.
Referee: Tom Foley.
Phone: (800) 737. 6040
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