"Michael is still experiencing some lower back pain and as such is not fit for the warm-up game against India today (Tuesday)," said Australia physiotherapist Alex Kountouris.
"He will head to London tomorrow (Wednesday) for specialist treatment and a decision on his fitness for the next game will be made in due course."
Defending champions Australia face England in their opening match of the 50-overs per side Champions Trophy tournament at Edgbaston on Saturday.
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