LOCK Donncha O’Callaghan will lead Worcester Warriors in their final European Challenge Cup game of the campaign against Enisei-STM at Sixways tomorrow (2pm).

The British & Irish Lion is one of five changes to the starting line-up which faced Brive last weekend.

Ben Te’o is named in the side before he heads away for training with England ahead of the RBS Six Nations.

Teenager Jamie Shillcock returns to the side at fly-half, while Sam Betty gets the nod in the back row in place of Marco Mama who has a tight hamstring.

Val Rapava Ruskin will also start after his try-scoring efforts from the bench last weekend in France.

A neck injury picked up in a collision last Saturday means Jonny Arr is out while Sam Ripper-Smith comes into the replacements as Warriors look to finish the competition on a high.

Worcester Warriors' squad:

15 Ben Howard

14 Perry Humphreys

13 Connor Braid

12 Ben Te’o

11 Dean Hammond

10 Jamie Shillcock

9 Luke Baldwin

1 Val Rapava Ruskin

2 Joe Taufete’e

3 Biyi Alo

4 Donncha O’Callaghan (captain)

5 Will Spencer

6 Huw Taylor

7 Sam Betty

8 Matt Cox

Replacements:

16 Jack Singleton

17 Ryan Bower

18 Mike Daniels

19 Andrew Kitchener

20 Sam Ripper-Smith

21 George de Cothi

22 Tiff Eden

23 Max Stelling

Enisei-STM's squad:
15 Ramil Gaisin
14 Igor Kurashov
13 Jurijs Baranovs (captain)
12 Dmitrii Gerasimov
11 Denis Simplikevich
10 Iurii Kushnarev
9 Alexey Shcherban
1 Valery Morozov
2 Nazir Gasanov
3 Evgenii Pronenko
4 Evgeny Elgin
5 Maxim Gargalic
6 Mikheil Gachechiladze
7 Andrey Temnov
8 Anton Rudoi

Replacements:
16 Shamil Magomedov
17 Andrei Polivalov
18 Jake Grey
19 Viacheslav Krasylnyk
20 Aleksandr Budychenko
21 Konstantin Uzunov
22 Aleksei Mikhaltsov
23 Vitalii Orlov