Kevin-Prince Boateng's injury problems drag on, as he limped off during today's test with the Milan youth team.
The Ghanaian midfielder was out for three weeks with a combination of groin and rib strains, then made his comeback against Juventus.
However, it's reported he pulled up during today's training session after a collision with one of the Primavera youth team players.
It is another concern for Boateng, who has been struggling with various injuries all season.
He would not have been available for the next Serie A game against Palermo anyway, as he was sent off against Juve and is therefore suspended.