England goalkeeper Fraser Forster does not know if he will still be at Celtic when they next play in Europe.
Norwich captain Sebastien Bassong has signed a new two-and-a-half-year contract.
Chile international Francisco Silva could make his debut for Osasuna against Barcelona this weekend after joining on loan from Universidad Catolica until the end of the season.
The 26-year-old midfielder was introduced as an Osasuna player today after taking his first training sessions with his new team-mates.
"It's my first experience in European football and I have to adapt as quickly as possible, because time is short and I hope to make the most of it," he said on the club's website.
"I have come here eager to do well because I want to make a good impression and be here for more than just these six months."
Although admitting he was a little tired from his journey, Silva insisted he would be ready for Sunday's trip to Barcelona if required.
"I'm fine," he said. "In Chile it was the pre-season but I have played enough in our friendly games. You always look forward to your debut. If it comes I will welcome to it. Otherwise I will wait for the opportunity."