JONATHAN Thomas will start at blindside flanker and captain Worcester Warriors for the pre-season trip to Ospreys tomorrow (3pm) as he returns to the Liberty Stadium to face the side he spent a decade with.

The Welshman, who has played 67 times for his country, lines up in the back row alongside Sam Betty and Semisi Taulava for Worcester's final pre-season clash.

Samoan international Jeremy Su'a is given his first start at scrum-half since arriving from Canterbury Crusaders and will partner Paul Warwick at half-back.

Fijian duo Josh Matavesi and Ravai Fatiaki line up together at centre and Josh Drauniniu and David Lemi occupy the wings.

Summer signing Mike Williams is given another chance to shine at lock after impressing against Cardiff Blues.

Warriors: Pennell; Drauniniu, Fatiaki, Matavesi, Lemi; Warwick, Su'a; Becasseau, Shervington, Andress, Williams, Schofield, Thomas, Betty, Taulava.

Replacements: Andrew, Seymour, Murray, Casson, de Carpentier, Hodgson, Mieres, Stelling, Clarke, Stephenson, Howard.