Sometimes, a last-gasp winner does more than just secure a result—it shifts the entire mood around a team. Kai Havertz’s stoppage-time goal for Arsenal away to Sporting Lisbon on Tuesday did exactly that, handing the Gunners a precious 1-0 advantage in their Champions League quarterfinal first leg and easing the pressure after a difficult stretch.

Coming off a League Cup final defeat and an FA Cup exit to Championship side Southampton, Arsenal were staring at a third straight match without a win. But in elite competition, resilience matters as much as flair. Havertz’s 91st-minute strike was a testament to playing until the final whistle—a moment that not only puts Arsenal ahead in the tie but also restores belief at a crucial time.

This wasn't a vintage, free-flowing Arsenal display. Instead, it was a gritty, disciplined away performance built on defensive solidity. With William Saliba back alongside Gabriel in central defense, the Gunners formed an imposing barrier in front of David Raya. Sporting rarely threatened, and the expected goals (xG) data reflected Arsenal’s control—even if the scoreline remained tense until the end.

Yet, as Arsenal grind out results, a bigger question looms: can this team truly win the Champions League? Tuesday’s other quarterfinal between Bayern Munich and Real Madrid showcased attacking fireworks and goalkeeping heroics—a different brand of football from Arsenal’s more measured approach. The path ahead won’t get easier. Should they advance, a semifinal against Paris Saint-Germain awaits, with Barcelona or Atlético Madrid potential opponents beyond that.

For now, the focus is on finishing the job against Sporting. But as the knockout stages intensify, Arsenal will need to blend their defensive resilience with more cutting edge in attack. In a competition where moments define legacies, Havertz’s late heroics might just be the spark they need.