Keir Starmer needed nimble footwork to navigate his meeting with Chinese President Xi Jinping. But the football-mad PM was on solid ground discussing his beloved Arsenal's defeat to Manchester United last weekend with the Chinese premier. His gift of a signed match ball from the game that dented his side's title hopes was a nifty bit of diplomacy. President Xi, who is said to be a Man Utd fan, is understood to have praised the Premier League and also expressed interest in Man City, Arsenal and