Ethan Waller will join the 100 club when he takes to the field for Saturday’s Gallagher Premiership match against Bristol Bears at Ashton Gate (3pm kick-off).

Now in his fifth season at Sixways, Waller will become the 31st player to rack up a century of appearances for Warriors in the professional era, having joined from Northampton Saints.

The loosehead prop joins hooker Niall Annett, lock Graham Kitchener and flanker Sam Lewis as the other 100 club members in the squad.

Elsewhere the side features three changes from the one that beat Sale Sharks 27-14 last week and Jonathan Thomas’ men will hope to build on the win, having suffered some heavy losses in the weeks prior.

However the side will be without Duhan van der Merwe, who scored twice in the win over Sale,.

The winger, on international duty with Scotland, is replaced by Perry Humphreys.

Meanwhile Andrew Kitchener returns to the second row in place of his elder brother, Graham, who suffered a head injury last weekend.

The final change comes at number eight where Matt Kvesic is recalled in place of Sione Vailanu, who is set to start for Tonga when they face England at Twickenham on Saturday.

Justin Clegg also returns, having missed the last two matches because of a shoulder injury.

He will start the match on the bench.

Bristol currently sit one place below Warriors having also suffered a difficult start to the campaign.

The hosts have made four changes to the side that beat London Irish 45-33 last weekend as they look to leapfrog Worcester.

Warriors | 15 Jamie Shillcock, 14 Perry Humphreys, 13 Ollie Lawrence, 12 Francois Venter, 11 Noah Heward, 10 Fin Smith, 9 Will Chudley, 1 Ethan Waller, 2 Scott Baldwin, 3 Christian Judge, 4 Matt Garvey, 5 Andrew Kitchener, 6 Kyle Hatherell, 7 Ted Hill (C), 8 Matt Kvesic.

Replacements | 16 Niall Annett, 17 Marc Thomas, 18 Jay Tyack, 19 Justin Clegg, 20 Sam Lewis, 21 Gareth Simpson, 22 Billy Searle, 23 Ashley Beck.