Worcester Warriors claimed their first win in six matches after upsetting London Wasps 29-23 in Friday night's Aviva Premiership clash at Sixways.
The hosts scored four tries through Chris Pennell, David Lemi, Blair Cowan and scrum-half Jonny Arr to secure a first bonus point victory for five months and dent their opponents' play-off prospects.
Fly-half Andy Goode chipped in with a penalty and conversion before going off injured, while his replacement Danny Gray added two conversions to nullify Wasps.
Warriors wing Josh Drauniniu was also sin-binned by referee Greg Garner for a deliberate knock-on in the second period, but it failed to make much difference.
The victory effectively ended any lingering relegation fears Worcester had by moving them 13 points above bottom club Sale Sharks with just five games left.
It was also their first win against their opponents since New Year's Day 2012 while the Londoners suffered back-to-back defeats for the first time since September after their loss to rivals Irish last weekend.
Wasps, in fifth place before kick-off, were left to ponder what might have been despite clinched a losing bonus point thanks to touchdowns from hooker Rhys Thomas, flanker Ashley Johnson, substitute Jack Wallace.
Fly-half Nicky Robinson added two penalties and a conversion to keep the visitors in touch, but Worcester held-on to secure a much-needed success
Ultimately, Richard Hill's side were too organised and too aggressive at the contact area for Wasps, while also displaying some impressive finishing power.
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