While FA Cup business may have taken focus for Southampton on Tuesday night, this season’s main aim will undoubtedly still be securing promotion back to the Premier League. An excellent unbeaten run has seen Russell Martin‘s side move into second in the Championship table, and they are now 11 points behind leaders Leicester City in the race for the title. At this stage of the season, that is of course a big deficit for the Saints to overhaul, but a remarkable statistic that has now come to light could give them hope of doing just that. Southampton in ruthless form at home right nowWhile it may…