BEIJING -- After a gruelling, two-week trip to Australia and China, Arsenal are back home in London to continue their preseason preparations. It's time to take stock of what can be deduced from the Gunners' travels, in which they followed up easy wins over local teams in Sydney by beating Bayern Munich on penalties, after a 1-1 draw, and then losing 3-0 to Chelsea in Beijing.
Here are five main takeaways:
1. Back three is still Plan A
Arsene Wenger started all four games with three at the back --...