Kai Havertz gave Arsenal the most precious of away goals when his 91st-minute finish at the Estádio José Alvalade handed Mikel Arteta’s side a 1-0 victory in the first leg of their Champions League quarter-final last week, setting up Wednesday’s decisive encounter at the Emirates.
Arsenal travel into that second leg having barely scraped a controlled performance in Lisbon, clinging to David Raya’s heroics and good fortune before Havertz struck from a Gabriel Martinelli through ball.
The context for Wednesday cannot be understated. Arsenal are trying to become the first English club to reach back-to-back Champions League semi-finals since Liverpool under Jürgen Klopp. They face Sporting at the Emirates with injuries still stripping them of Bukayo Saka, Jurriën Timber and Martin Odegaard, compounding the problem of a domestic form that saw them beaten at home by Bournemouth the previous Saturday.
Sporting are not a side that will travel meekly to London. They overturned a 3-0 first-leg loss against Bodø/Glimt earlier in the tournament, winning 5-0 in the return to progress. They beat PSG at home in the league phase. Striker Luis Suárez, tasked with filling the considerable goalscoring gap left by Viktor Gyökeres, has 33 goals in all competitions this season. The Portuguese champions will carry belief and structure.
For Arsenal, this is about execution rather than inspiration. A goalless draw advances them to the semi-finals, though a Sporting away goal changes the calculation entirely.
Arteta’s challenge is to find the defensive solidity that has sometimes deserted his team in recent weeks while managing the physical and psychological fatigue of a squad that has now played 54 competitive matches this season. The Emirates crowd, which was booed its own team after the Bournemouth defeat, will need to be a resource rather than an additional pressure source.