GEORGIAN international hooker Jaba Bregvadze and academy prop Gareth Milasinovich will make full debuts for Worcester Warriors at Italian side Zebre in the European Challenge Cup tomorrow (2pm GMT).
Sam Betty, 29, will become a club centurion with his 100th appearance four years after joining from Cornish Pirates when he lines up at flanker.
Warriors will look to make it two straight wins in the competition in Parma.
JB Bruzulier returns to captain the side at scrum-half, while Alex Grove and Perry Humphreys also come into the back-line.
Dan Sanderson makes his first appearance in the forward pack since helping Warriors win the British and Irish Cup in April.
Marco Mama comes in at number eight as Warriors make seven changes to the side who defeated La Rochelle 19-3 last Saturday.
Warriors: Howard; Humphreys, Stelling, Grove, Hammond; Lamb, Bruzulier; Bower, Bregvadze, Milasinovich, Sanderson, O'Shea, Kirwan, Betty, Mama. Replacements: Sowrey, Appiah, Rees, Barry, Cox, Mulchrone, Mills, Biggs.
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