MANCHESTER, England, April 19 : Pep Guardiola patrolled the touchline in Sunday’s pivotal 2-1 Premier League win over Arsenal virtually heading, shooting and throwing his body at seemingly every ball, but when it was over, the City manager reduced the night to a single word: hope. Guardiola's prized poacher Erling Haaland struck the second-half winner in a victory that slashed the gap at the top of the table to three points, with City having a game in hand. Guardiola, who was wildly animated