Arsenal boss Arsene Wenger says Mathieu Debuchy arrives as a direct replacement for Bacary Sagna.
Debuchy arrived from Newcastle United yesterday.
"The obvious replacement for Sagna was Debuchy. He knows what to expect and that's of course a huge advantage," Wenger said.
"Debuchy is very good going forward, is very quick in transition.
"He is sharp in his marking, good with interceptions and quick to go from defence to attack.
"You feel he always has the desire to go forward, so I believe he will be perfectly suited to our style in that aspect."
