"If I'm not performing, of course I'm under pressure. I've always had faith in Shane, I think he's a quality player, he's a quality all-rounder and I think with Mitchell Marsh being injured he's an even bigger player," McGrath said.

"It would be nice to see him go out and get a hundred here and a few wickets so that's my prediction for this Test match."

McGrath also lauded rookie seamer Josh Hazlewood, who has been compared to him, for his positive impact on the series.

"He's got a big career in front of him," he said. "He's tall, he's strong, he hits good areas, he builds pressure, he's got good control and gets the ball through at good pace. He's got everything he needs to be to be a quality player for a long time."

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