Chelsea defender Alex is set to miss the start of the new season after picking up a thigh injury in training.
Alex has been left behind for Friday's friendly with Ajax after suffering the problem in training.
The injury is expected to keep the Brazilian on the sidelines for at least a month meaning he miss the Premier League opener against West Brom on 14th August.
Alex joins Blues team-mate Petr Cech on the sidelines with the Czech goalkeeper ruled out for a month with a calf injury.
The injury to Alex leaves Chelsea short of cover in central defence with Ricardo Carvalho being linked with a move away from Stamford Bridge.