The away team scored, by German midfielder Dominik Stolz, but the lead lasted just three minutes, as Slovan restored the tie, by midfielder Vladimirt Weiss.
The surprising reply given by the Luxembourgish champion to the Slovakian champion unnerved the home team, who saw four yellow cards and a red card in the first half, the last one at 45+6, shown to Juraj Kucka, with the help of the video referee.
However, it wasn't because of playing with one more unit that Hesperange played levelled with their opponent, over whom they even had phases of supremacy as the game's statistical data confirm, and they also did it in the first half, when they were in numerical equality.
This draw in Bratislava opens up good prospects for qualifying for the next phase against Hesperange, who, if they qualify, will face Urartu from Armenia or Zrinjski from Bosnia.