Wales centre Jamie Roberts goes head to head as he tackles Ireland hooker Rory Best in the second half. Check out the following video from Round 4 of the RBS 6 Nations as Wales take on Ireland at the Millennium stadium.
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Wales
15. Leigh Halfpenny
14. George North
13. Jonathan Davies
12. Jamie Roberts
11. Liam Williams
10. Dan Biggar
9. Rhys Webb
1. Gethin Jenkins
2. Scott Baldwin
3. Samson Lee
4. Luke Charteris
5. Alun Wyn Jones
6. Dan Lydiate
7. Sam Warburton
8. Taulupe Faletau
16. Richard Hibbard
17. Rob Evans
18. Aaron Jarvis
19. Jake Ball
20. Justin Tipuric
21. Mike Phillips
22. Rhys Priestland
23. Scott Williams
Ireland
15. Rob Kearney
14. Tommy Bowe
13. Jared Payne
12. Robbie Henshaw
11. Simon Zebo
10. Jonathan Sexton
9. Conor Murray
1. Jack McGrath
2. Rory Best
3. Mike Ross
4. Devin Toner
5. Paul O'Connell
6. Peter O'Mahony
7. Sean O'Brien
8. Jamie Heaslip
16. Sean Cronin
17. Cian Healy
18. Marty Moore
19. Iain Henderson
20. Jordi Murphy
21. Eoin Reddan
22. Ian Madigan
23. Felix Jones
Read more at http://www.rbs6nations.com/en/matchcentre/28057.php#eIvCTd2y1gPGKSMG.99