The Gunners play Chelsea at 8pm at the Baku Olympic Stadium, with tough-tackling Torreira key to their hopes of lifting the Europa League trophy.
And supporting him all the way is Vittoria Repetto, his girlfriend who has travelled to the Azerbaijan capital for the tie.
She was yesterday pictured smooching the Uruguayan at the stadium in a post she shared on Instagram.
Vittoria has also been roaming the city, enjoying the 27C heat with other partners of Arsenal stars.
For the picture of her and Torreira, she captioned it with “Te Amo”, which is Spanish for “I love you”.
And according to her Instagram page, the couple are absolutely smitten.
They are pictured snogging in multiple posts and have been dating for a number of years.
Vittoria boasts 21,000 followers on Instagram, and travels around the world for exotic holidays.
She will be one of fewer than normal Gunners fans cheering on Unai Emery’s side tonight.
The build-up to the game has been marred by controversy, with fans travelling a whopping 2,485 miles to get to the city.