Marco Borriello is stuck at SPAL for the rest of the season despite increasing tension with the fans, as he has already played for two clubs.
The rules limit players to representing only two clubs per season and Borriello made one Coppa Italia appearance with Cagliari in August.
He then terminated the contract by mutual consent and moved to newly-promoted SPAL.
That experience started strong with a goal in his second appearance, but it remains his only contribution.
The SPAL fans have been sending insulting messages and jeering the 35-year-old hitman, urging him to leave the club.
However, as he has already played for two teams this season, his only option would be a return to Cagliari and he burned his bridges there too.