He suffered a cruciate ligament injury in February during a match against Crystal Palace, which ended his season.
Initially, it was thought that Lisandro might not be able to return to the field until 2026.
However, he is now back at the team's training facility, Carrington, where he is doing individual training.
This is a positive sign that his recovery is on track, but the exact date of his return to playing is still unclear.
The team is taking a cautious approach to ensure Lisandro's comeback is not rushed.
Lisandro is entering his fourth season with Manchester United, having joined the team from Ajax.