London, June 9 -- South Africa fast bowler Lungi Ngidi looms as the wildcard that could play a major role in the Proteas' quest to win the ICC World Test Championship Final at Lord's.

While fellow quicks Kagiso Rabada and Marco Jansen have taken much of the limelight ahead of the Ultimate Test against Australia that commences on Wednesday, Ngidi is set to play a big part in South Africa's fearsome pace attack having shaken off a frustrating recent period highlighted by injury.

Ngidi went through his paces during an intense training session at Lord's on Sunday and the talented 29-year-old appears primed for the one-off Test again the Aussies at the Home of Cricket.

"I feel very ready as I have had a lot of time to prepare for this," Ngi...