It was a gamble that backfired as Debuchy was forced off with a hamstring injury after just 16 minutes .
Wenger defended his decision to leave Jenkinson out after he had just returned following a serious knee problem .
It was a gamble that backfired as Debuchy was forced off with a hamstring injury after just 16 minutes , but Wenger defended his decision to leave Jenkinson out after he had just returned following a serious knee problem .