Arsenal fullback Kieran Gibbs faces more time on the sidelines.

Gibbs will be sidelined for between four and five weeks after undergoing a hernia operation, manager Arsene Wenger has confirmed.

The problem came to light after the 22-year-old sustained a stomach injury in training a month ago, and he now looks set to be out of action until around Christmas.

Wenger told Arsenal's official website: "He has a hernia and had surgery on Thursday. He looks like he will be out for between four and five weeks.

"At first he had an abdominal strain, certainly caused by the fact that he had a hernia already. When the strain was healed we discovered that he had a hernia. We had a fear that could be behind it so we decided to do the surgery."