It was a question that caught Thomas Tuchel off guard when he faced the media ahead of Chelsea's FA Cup semi-final against Crystal Palace last week. Yet it was simple enough. Why is his side's away form this season so much better than that at Stamford Bridge?
"Is it like this? I don't know. Normally, the home game gives you an advantage," Tuchel pondered. "After the big success in the Champions League last season, maybe teams play at Stamford Bridge not to lose first of all, with a slightly more defensive approach, and we struggle a bit not to break them down.
"When we are away, our opponents also get pushed to win [by their supporters], and it opens up the game maybe a little bit for us. I don't know, it can be anything. Maybe it is because we feel the pressure. It can be bad luck, good luck, it can be not even worth analysing it.