Arsenal fullback Hector Bellerin insists they'll be ready for Sunday's clash with Chelsea.
The Gunners survived a scare to come back from a goal down to beat Cologne 3-1 at The Emirates last night.
Bellerin told BT Sport: "We started a bit with cold feet but after that it just worked.
“The win in the league against Bournemouth and today's win, coming back from behind, gives you a boost.
"We will train over the next two days and then be ready for Chelsea."