Mark Chapman presents highlights of today's three Premier League matches.New Arsenal manager Unai Emery faces a baptism of fire with his first taste of English top-flight football coming against last season's runaway champions Manchester City at the Emirates Stadium. The day's other two opening round fixtures see Liverpool take on Manuel Pellegrini's new West Ham side and Burnley travel to Southampton.There's also a goals round-up of the seven other Premier League games that have taken place this weekend.