Sydney, dec. 16 : Australian opening batsman Matthew Hayden has identified tall South African pacer Morne Morkel as the biggest threat to the home side in the first Test against South Africa on the bouncy WACA Ground pitch.

"He is the danger player for us, most definitely. The modern game, the people who have been successful from a bowling point of view have all been well into their six-foot plus category, hitting the wicket hard. The modern-day greats, maybe with the exception of Brett Lee, they have all been big tall fast bowlers," the Sydney Morning Herald quoted Hayden, as saying.

"Glenn McGrath, Curtly Ambrose, Courtney Walsh, Andrew Flintoff, when he''s on song, Steve Harmison, they''re all over you. Wasim Akram, Ishant Sharma. The pace and trajectory of the ball is very significant the higher up you go because no one is overly concerned with velocity," added Hayden.

Hayden was also excited about the prospect of Victoria''s one-Test player Peter Siddle, who has been called into the 12-man Test squad, making his home debut at the WACA Ground and labelled him a superstar

"He''s a good, simple fast bowler. I''m very excited about the fact that he''s going to play his debut Australian Test match in particular in Perth," Hayden said.

"He''s a unique character to the game as well and I think he''s going to blossom into an absolute superstar for Australia. So, it''s going to be great to witness, the making of his career. He''s lively," he said.

Hayden, 37, has thrown himself into a new project as a pin-up boy for a Men of Cricket calendar, which is channelling profits into the McGrath Foundation to fund breast cancer nurses, mainly in rural Australia.

The plight of champion pacer and father-of-two McGrath touched the nation when his wife Jane died of cancer in June 2008. (ANI)