Celtic manager Neil Lennon is hopeful of getting his first January signing in the coming days.
The Scottish champions have held talks over the likes of Slovan Bratislava striker Andraz Sporar and been linked with 21-year-old Polish striker Patryk Klimala of Jagiellonia Bialystok.
Speaking from his squad's Dubai training camp, Lennon told Celtic TV: "We have had three or four important calls between the staff and the club and obviously patience is the key.
Both Mikey Johnston and Mohamed Elyounoussi have been carrying knocks in recent weeks too.
Lennon said: "Already a couple of players have left in Scott and Lewis, we might streamline it a little bit more, but across the board we are looking to bring a few players in."
The Celtic boss has been encouraged by the showing of another two wide players in Dubai.
Daniel Arzani is closing in on a comeback after a lengthy lay-off from the knee injury he suffered on his Celtic debut in October 2018.
And Marian Shved is pushing for only his third appearance of the season as the holders prepare to begin their William Hill Scottish Cup defence against Partick Thistle on Saturday.
Lennon said: "They have all trained well. It's good to see Daniel Arzani back and Marian Shved has had a good week."
