North returns to action for Wales against Ireland
North has not played since suffering concussion in the process of scoring a try for Saints against Wasps on March 27.
It was the third time he had been knocked out in a matter of months, having also suffered concussion in Wales games against New Zealand and England.
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Hide AdBut he is now ready to play again, and has been named in the Wales team for their second World Cup warm-up game against the Irish.
North has passed all the required tests and successfully came through a Wales squad training match in north Wales earlier this month
The Saints ace will win his 50th cap for his country, the 23-year-old becoming the youngest Welshman to achieve that feat.