Southampton have a maximum of six games left before they know what league they will be playing in next season. Russell Martin saw his side dealt a real blow with defeat at Cardiff City on Saturday. It was always going to be tough to secure an automatic promotion spot, but with five points to make up in three games following the Cardiff loss it is a real long shot now. If Southampton are to be a Premier League club next season then it looks increasingly likely that they will have to go the distance via the play-offs. Regardless of whether they have three games or more remaining, they will have …