Ma'a Nonu is coming back to the Blues – for the third time, and now the questions will be asked about his All Blacks ambitions as a 36-year-old and perhaps even another World Cup appearance

Mystery still surrounds Nonu's departure from Toulon – he announced in May that he wouldn't be extending his stay, and cited family reasons for his departure.

After leaving the Blues for the Highlanders, returning, and then leaving the franchise for the Hurricanes, he is back once again in Auckland

Radio Sport Rugby editor Nigel Yalden told Mike Hosking he is excited to see the return of a former All Black great.

"Having people who have gone overseas with good experience and can teach and mentor the youngsters, it's not a bad signing at all."

LISTEN ABOVE AS NIGEL YALDEN SPEAKS TO MIKE HOSKING