Tough games for Manchester City & Liverpool in Premier League

London, Oct 23 (UNI) Premier League leader Manchester City looks to continue its perfect start to the season on Saturday lunchtime when Enzo Maresca's side visits an improving Aston Villa, while second-placed Arsenal hosts Everton in this weekend's round of matches. Erling Haaland could return after sitting out his side's 5-1 Champions League win at home to AEK Athens in midweek. However, Mateo Kovacic, Nico O'Reilly and Antoine Semenyo remain sidelined, with Semenyo expected to be out for around eight weeks with a knee injury. Manchester City is aiming to become only the third team to win its first eight…