Arsenal boss Arsene Wenger says he won't push William Gallas over his calf strain.
Wenger admits he was to blame for the latest setback suffered by the defender in training earlier this week.
"The scan showed nothing major, but every time he starts to push a little bit he falls back so it has not completely healed," said Wenger to arsenal.com.
"Calves sometimes are a mystery. It came back twice. It's that the injury is much worse, it's that we have to be cautious with it. We pushed him a bit and he was in a hurry. But we have to be cautious this time, to take a little bit more time than we would do.
"France shouldn't be worried for [the World Cup in] June, it's minor. He has no fibre damage, he has a bit of pressure between two muscles."