The top seed, however, often saves his best for the heat of a grand slam and he never had to leave first gear against Souza, who is ranked 91st in the world and looked out of his depth from the start. He came into this contest on an 11-match losing streak and has never advanced...
In a match that also featured six yellow cards Arsenal dominated possession but were far from their dazzling attacking best and have only scored three goals, including two own-goals, in four games this season.
Of all the storylines in sport right now, none are more significant than the one about Serena Williams and her historic quest to complete the first Calendar Grand Slam of her career.
Newcastle welcome back Daryl Janmaat from suspension, may also have Moussa Sissoko available again following injury, and could give Florian Thauvin his first Premier League start after he impressed in the midweek Capital One Cup win over Northampton.