Nigeria, April 8 -- Arsenal and Bayern Munich took significant steps towards the semi-finals of the UEFA Champions League after securing impressive away victories in their respective quarter-final first-leg ties on Tuesday night.

At the Estadio Jose Alvalade, Arsenal edged Sporting Lisbon 1-0 in a tightly contested encounter, with Kai Havertz scoring the decisive goal late in the game. The breakthrough came after a moment of quality from Gabriel Martinelli, whose incisive delivery into the box was expertly controlled and finished by Havertz.

Arsenal thought they had taken the lead earlier through Martin Zubimendi, but the effort was ruled out.

The visitors, however, kept pushing, and their effort paid off in the latter stages of the ga...