Aston Villa have released a statement saying that Emiliano Buendia has suffered a significant knee ligament injury.
"The midfielder sustained the damage during training yesterday and has subsequently undergone a scan," the statement said.
"Buendia will now be under review ahead of a further consultation with a knee specialist."
The Argentinian had enjoyed a positive season with Villa in 2022/23, after joining from Norwich City in the summer of 2021.
He featured in every Premier League match, scoring five goals and providing two assists.
Buendia had also been enjoying a great pre-season ahead of the 2023/24 campaign, scoring three goals and providing one assist.
Villa start their 2023/24 Premier League away to Newcastle United on Saturday, hoping to build upon the seventh-placed finish that was inspired by Unai Emery's arrival mid-season as head coach.