All Blacks legend: Boks will run out of puff

London - Former New Zealand legend Justin Marshall believes the Springboks will run out of puff in their Rugby World Cup semi-final against the All Blacks.

Writing in his column on the New Zealand Herald website, Marshall, who played 81 Tests for New Zealand, was adamant that with their "dour" mindset it would be the Boks - and not the All Blacks - who would be taking in the deep breaths come the final quarter of Saturday's semi-final blockbuster at Twickenham.

Predictably, despite admitting the Boks do have enough experience in their ranks and will have their share of "big moments" in the match, Marshall is backing the All Blacks to reach the final.

Meanwhile, Marshall has offered some selection advice to Bok coach Heyneke Meyer, suggesting his stick with Eben Etzebeth and Lood de Jager (injury permitting) as the lock pairing and leave Victor Matfield on the bench in case things go "pear shaped at the lineout".

Saturday's semi-final kicks off at 17:00 SA time.