Wales teammates George North and Jamie Roberts have been among those using Twitter to send messages of support to Dan Lydiate, who looks set to miss his country's autumn internationals after breaking his ankle while playing for the Dragons.
Roberts also sent his best wishes to Blues teammate Jason Tovey, who went off injured during his first start for the region last night.
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Williams has had scans after he suffered a shoulder injury against Northern Ireland.
Chris Bryant was speaking on ITV's Good Morning Britain following his resignation as Shadow Leader of the House of Commons.