Mark Wood has cast doubt on his availability for the third Ashes Test and admitted concerns that, at 35, his body is no longer coping with the rigours of bowling 90mph/145kph.

Wood had surgery on his left knee after hobbling out of England's Champions Trophy campaign in February, and the series opener in Perth was his first Test match in 15 months. He bowled 11 wicketless overs across the match but was sent to a specialist after reporting more pain and has been wearing a knee brace since arriving in Brisbane.

Speaking to Channel 7 at the tea break during the second Test at the Gabba, Wood suggested he was unlikely to be in contention for the Adelaide Test, which starts on December 17: "I think there's a chance there, but more realistically, it's probably more Melbourne and then [Syd

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