text: Jonathan Forte hit the post for the visitors, who are six points above the bottom four, before Tareiq Holmes-Dennis sent an effort wide.
  Oldham keeper Joel Coleman saved a David Worrall shot at the other end.
  Main fired home after the hour mark as he latched on to Forte's pass to seal victory for the Latics.
  Oldham have a sizeable cushion above the League One relegation places with three games left to play, while Southend remain in 13th place.
target: Oldham Athletic boosted their hopes of League One survival as Curtis Main's second-half goal sealed a vital three points against Southend United.