3. Julian Alvarez (Atletico Madrid)

Atletico Madrid’s trip to Arsenal in the league phase feels a long time ago, but it will stick in their mind not just for the four goals they shipped, but for their struggles in attack.

Atletico produced only 0.32 xG from open play in that defeat and managed only one shot on target, so, if they are to take anything against Arsenal this time around, getting Julian Alvarez in the game will be key.

The Argentina forward has scored nine goals in the competition this season, more than any Atletico player had managed in a Champions League campaign.

He’s also a menace defending from the front, with a mammoth 853 high-intensity pressures – more than anyone else this season. That’s 70 per game on average.

That work ethic, ruthlessness in front of goal and the wizardry to bend a free-kick into the top corner, as Barcelona found out, make the 26-year-old vital to Atletico’s chances of progressing.