With club football returning this weekend, here are 10 high-profile stars who are yet to make a single appearance for their sides in 2021/22, including Sergio Aguero and Sergio Ramos.
Aguero is yet to make his professional debut for Barcelona after he joined the club as a free agent during the latest transfer window.
Scroll through the gallery above to see 10 players who are yet to make an appearance for their clubs this season
The Argentina striker, who was riddled with injuries during his final season with Manchester City, has seemingly carried that misfortune into his spell with new side Barca.
According to Transfermarkt, the 33-year-old has already missed 10 games this season due to a calf injury. However, his road to recovery has begun, and he featured in a friendly against UE Cornella at Barca's training ground this week, per ESPN.
Another 2021/22 recruit who is yet to make his first outing for his new club is ex-Real Madrid captain Ramos, who is still out of action for Paris Saint-Germain.
The Spaniard joined the Ligue 1 giants on a free transfer after his contract with Los Blancos came to an end in June. Since then, he has missed 13 matches for PSG, and it is not yet known when he will be in contention to set foot on the pitch again.
Although several players on this list have missed out due to injury, some of them have been out of action due to non-selection, among other reasons. This is the case for City star John Stones, who has been out of favour for Pep Guardiola's side so far this season.
Stones has sat on the bench in six of the nine matches he has missed thus far, and was not included in the matchday squad for the other three fixtures – scroll through the gallery above to see more notable names who are yet to feature for their clubs this season!
Here are the 10 best performers in Europe's top five leagues so far in the 2021/22 season, per Sky Sports' Power Rankings