Defender Jack Hendry, midfielder Scott Allan, and winger Lewis Morgan come come into that bracket, with Hendry the most likely to depart, having not started a game since early October.
Weah has been told exactly were he is going to play under Brendan Rodgers over the rest of the campaign. Ultimately he is a Celtic player and the club are paying him a lot of money.
The 21-year-old, who has two caps for the Ivory Coast, has scored 22 goals in 32 games this season after moving to Slovakia in March after spending two years playing in Tunisia with Étoile du Sahel. I'm so excited to be here.
He said he would hold talks with the 28-year-old when he returns to Glasgow at the weekend, pointing out that the player was "not on holiday".More news: China opposes United States provocation in its territorial waters: FM
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"I'm like, 'Yeah, I had a meeting with the gaffer and I'm really loving the team and really loving the club and I'm going to come here'". Players who have dealt with any types of issues, it's admitting that responsibility and knowing where you are at, really.
"My father has played at Celtic before".
Timothy has joined his new Celtic team-mates at their winter training camp in Dubai.
"It is a wonderful moment for me, and such a blessing with such a great coach like Brendan Rodgers to lead me in the right direction", he told BBC.
"It's great to see him again and it's great seeing how he has progressed and seeing his development at the club and, hopefully, I can do the same".
Pointing out that his team have a game in hand, lifted the League Cup and reached the last 32 in the Europa League, he said: "I think we're in a very good place to kick on for the second part of the season".