DONNCHA O’Callaghan will lead Worcester Warriors against his old side Munster tomorrow night at Sixways in their final pre-season friendly clash ahead of the new Aviva Premiership campaign (7.30pm).

O’Callaghan’s former Ireland and Munster team-mate Peter Stringer also starts for Warriors who have made six changes from the side that lost 24-15 at Birmingham Moseley last weekend.

Stringer forms the half-back combination with Sam Olver while Jackson Willison and Wynand Olivier start in midfield.

The back three sees pacey young trio Josh Adams, Perry Humphreys and Dean Hammond given the nod as Warriors look to finish their pre-season campaign with a bang.

Ryan Bower, Jack Singleton and Biyi Alo occupy the Warriors front row while O’Callaghan is joined by Pierce Phillips in the second row.

GJ van Velze, Sam Lewis and Matt Cox start in the back row.

Warriors have named 14 replacements including Alafoti Faosiliva, who has recently returned from international duty with Samoa over the summer.

Lock Will Spencer and scrum-half Michael Dowsett are not involved despite training with Worcester this week.

British and Irish Lions ace Ben Te'o has returned to Sixways but will not play tomorrow night.

Warriors: Adams; Humphreys, Olivier, Willison, Hammond; Olver, Stringer; Bower, Singleton, Alo, O’Callaghan, Phillips, Cox, Lewis, van Velze. Replacements: Taufete’e, Wrafter, Thorp, Scotland-Williamson, Taylor, Arr, Heathcote, Howe, Williams, Barry, Faosiliva, Butler, Shillcock, Howard.