Roma are in real danger of Europa League elimination, making this trip to Finland simply must win.
After four games, José Mourinho’s men have just four points on the board, their only win coming when HJK visited Stadio Olimpico.
I Giallorossi have suffered defeat in Razgrad and at home to Real Betis, before earning a crucial draw in southern Spain a fortnight ago.
Andrea Belotti equalising with a tap-in at Estadio Benito Villamarín.
So, Roma kick off three points below Ludogorets, still to host the Bulgarian champions on the final matchday.
Will the reigning Europa Conference League holders avoid an immediate return to that competition?
HJK meanwhile are competing in this tournament for the first time since 2015, and were always likely to be the section’s whipping boys.
Toni Koskela’s team did get off the mark on matchday three, holding Ludogorets to a draw.
Përparim Hetemaj equalising with a header, in-turn doing Roma a massive favour.
No favours will be handed out this time at Töölön jalkapallostadion, so can the Veikkausliiga champions secure a famous victory?