Azzurri coach Cesare Prandelli has said he will wait until Friday's deadline for replacements to decide whether to keep Barzagli in the squad after the centre-back was all but ruled out of the group stage with a calf problem.
The Italian football federation said in a statement that Cagliari's Astori was en route to Krakow, suggesting Barzagli could be losing his fight to persuade Prandelli.
Injury worries, coupled with left-back Domenico Criscito being dropped from the squad so he can battle match-fixing allegations, have led Prandelli to consider playing three at the back in their Group C opener against holders Spain on Sunday.
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