The Spaniard is contracted until the end of next season, but the manager wants him to stay at the club longer Manchester City manager Pep Guardiola wants David Silva to remain at the Premier League club beyond the end of his deal in 2020. Silva, 33, has become a star for City, winning three league titles and an FA Cup since arriving from Valencia in 2010. He’s gone on to make 370 total appearances, scoring 70 goals during his stay…