Barca were taking on Alaves in the club’s first game since Koeman’s sacking on Wednesday.
The bigger picture
Prior to Saturday’s scare, injuries had proven a constant concern for Aguero over the past few years.
In 2020-21 the then-Manchester City star was restricted to just 12 Premier League appearances as knee and hamstring problems, as well as a long battle with Covid-19, cast a shadow over what proved to be his last season at the Etihad Stadium.
Fitness issues have also hindered his start at Camp Nou, although he was able to mark his first Clasico with a goal as he netted a late consolation for Barcelona off the bench against Real Madrid last weekend.