Kai Havertz struck deep into stoppage time in the second half to secure a crucial 1-0 first-leg victory for Arsenal against Sporting CP.
At the Santiago Bernabéu Stadium, goals from Luis Díaz and Harry Kane guided Bayern Munich to a 2-1 away win over Real Madrid.
Next up, Liverpool face Paris Saint-Germain tonight as they aim to respond strongly after a heavy 4-0 loss to Manchester City in the FA Cup.
