That much was obvious to Ianto. But he'll take John's word for it, because he's right. He hasn't got a spare shirt and he'll probably just open it up again if he tries to take this one off now. Frowning at the blood-soaked bandage then back up at John's face again, he sighs tiredly before nodding.

"Once we get into the city then," he compromises. There will be more shirts there, after all. No need to go running around getting himself an infection just because he's on a mission. He needs the use of his arm more than they need to find the Heart straight away. Speaking of the city...

He glances down the road. They've still got something of a distance left to walk. "We'd better start moving again soon, I suppose." Not that he really likes the idea of it, but they need to make as much use of the daylight as they can.