Relegation-threatened Livorno have sacked Domenico Di Carlo after just 88 days in charge and re-appointed Davide Nicola.
Virgil van Dijk claims he knows nothing of interest from English clubs and is keen to prove himself in the Champions League with Celtic.
St Mirren have added to their squad ahead of the Scottish Communities League Cup final by completing the signing of Sander Puri.
The Estonia winger, who has 47 caps, has signed until the end of the season with the club having the option to extend his contract for a year.
The 24-year-old is eligible for Sunday's Hampden clash against Hearts and manager Danny Lennon refused to rule out bringing him straight into the squad after he trained with the club throughout this week.
Puri was previously on trial with Kilmarnock after leaving Finnish club KuPS.