By Toby Cudworth Manchester City manager Pep Guardiola has advised his players to look towards the example set by Rafael Nadal during his professional tennis career. Nadal won 22 Grand Slam titles, including a record 14 at the French Open, but struggled at various points with nagging, and occasionally serious, injuries. City have been a dominant force under Guardiola, winning four consecutive Premier League titles, but they find themselves under increasing pressure from Arsenal and Liverpool, who have made a strong start to life under Arne Slot. Their bid to a win another Premier League crown …