I'll silence Sexton, says Roberts

They may be Racing Metro and British & Irish Lions team-mates, but Jamie Roberts plans on giving Johnny Sexton the silent treatment when Ireland meet Wales in the Six Nations on Saturday.



Ireland were crowned Grand Slam champions of Europe in Cardiff six years ago - and Wales star Roberts says he will never forget it.



Roberts opposes Ireland for an eighth time during his 68-cap Wales career on Saturday, with the stakes again high.



Defeat for Wales at the Millennium Stadium will end their title hopes, while an Ireland triumph would leave them needing victory over Scotland next week t…