|England fast bowlers Ajmal Shahzad and Chris Tremlett are flying back from Australia after being injured in the one-day series.
Shahzad needs treatment on a hamstring problem and Tremlett has a side strain, the England and Wales Cricket Board said on its website on Wednesday.
The 25-year-old Shahzad has been picked in the squad for the World Cup starting this month while Tremlett, 29, is viewed as cover for the 50-over tournament.
Spinner Graeme Swann (back injury) and all-rounder Tim Bresnan (calf problem) flew back from Australia last week.
Shahzad and Tremlett were sidelined on Wednesday when Australia went 5-1 up in the seven-match one-day series, reaching a target of 334 to beat England by two wickets in Sydney.
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