Lucas Digne handed PSG left-back test against Lamine Yamal with Nuno Mendes out
Paris Saint-Germain's left-flank headache
Paris Saint-Germain have a selection problem on the left of their defence heading into Tuesday's Champions League meeting with Barcelona. Nuno Mendes has been ruled out of the European tie with a thigh injury suffered against Strasbourg, leaving Lucas Digne as the natural alternative to face one of the most dangerous wide threats in world football: Lamine Yamal.
Mendes was confirmed out of the Barcelona fixture by PSG on 18 October, after leaving the Strasbourg match injured. Spanish outlet Mundo Deportivo, reporting on 19 October, described the Portuguese full-back as Luis Enrique's preferred answer to the Barcelona winger, underlining quite how disruptive his absence is.
Yamal's form raises the stakes
The timing could hardly be worse for the French champions. Yamal is in excellent form, and his impact in Barcelona's comeback against Galatasaray underlined the threat PSG will have to manage on Tuesday. According to a player snapshot fetched on 18 October, the winger had registered eight goals and six assists in nine LaLiga 2026-27 appearances — a return that makes the left-back decision especially prominent.
Digne's case is far from settled
Digne's recent outing against Strasbourg did little to strengthen his claim. Mundo Deportivo assessed the Frenchman's display in PSG's 3-1 defeat as "laboured and lacking in decisiveness," reporting that Luis Enrique substituted him as he changed course after starting several reserves. That leaves the coach weighing a natural replacement whose latest performance raised questions, rather than simply making a like-for-like switch without concern.
There is an added subplot: Digne is a former Barcelona player, having spent two seasons at the club from 2016 to 2018 before moving to the Premier League for spells with Everton and Aston Villa. A return to the Camp Nou, this time in PSG colours, would be a notable reunion.
Mendes' absence disrupts a settled European shape
Mendes, by contrast, had been a regular in PSG's European starting side. He featured in the 6-1 home win over Slovan Bratislava and the 4-2 victory away to Manchester City, bringing physical strength, defensive force and forward runs from the left. Luis Enrique has largely relied in Europe on the core of the side that won the Champions League in 2024-25 and 2025-26, making the loss of a regular starter a notable disruption.
PSG's flexible 4-3-3 is built around possession, a high press and quick attacking movement, with the full-backs providing width. The structure asks for both intensity and technical precision, while Luis Enrique is particularly wary of turnovers that allow opponents to counter. Achraf Hakimi supplies vertical runs on the right flank, Vitinha organises the midfield and Fabián Ruiz offers control; Khvicha Kvaratskhelia and Désiré Doué bring individual creativity in attack.
Depth questions linger
The predicament feeds into a wider concern about PSG's squad depth. Prior reporting on 13 October noted that Luis Enrique's rotation gamble had faltered, with a 3-1 win over Le Mans exposing a gap between the reliability his reserve players currently offer and the demands of his long-term project. The left-back call against Barcelona is the latest test of that depth.
The immediate question
PSG face Barcelona on Tuesday, 20 October, in the third matchday of the Champions League. Luis Enrique must decide how to cover the left side, with Digne the alternative identified as most natural in the available reporting. German outlet Sport1 also reported on 18 October that Mendes was expected to be unavailable, citing French newspaper Le Parisien's account of his examination, while noting PSG had confirmed only that he left the Strasbourg match injured. Neither report establishes a recovery timeline, so the immediate question is who starts against Barcelona.