Russell Martin will hope to see a big improvement from his Southampton players against Manchester United on Saturday. Southampton start the weekend’s Premier League football as they welcome Manchester United to St Mary’s in Saturday’s early kick-off . Russell Martin will have spent the international break pondering what has gone wrong for Southampton so far as they have lost all three of their league games of the new campaign. To make matters worse, Yukinari Sugawara’s late strike in the 3-1 defeat to Brentford last match was the only league goal the Saints scored in their first three fixtures…