The January transfer window is upon us and for Brendan Rodgers' Celtic, it's a chance to refresh an already talented squad with some new talent, while also shipping out a few players surplus to requirement.

While the Hoops may not be quite hitting the heights of last term, they're still in a dominant position in Scottish football and have plenty of resources to improve even further after banking another season's worth of UEFA Champions League cash.

However, Brendan Rodgers has spoken at length previously about his desire not to have too bloated a squad and so moving on players currently not getting a game will be seen as just as important before January comes to a close.

Who should the Hoops be saying goodbye to this month?

These are the THREE players who don't have a future at Celtic Park...

Erik Sviatchenko

Erik Sviatchenko initially looked like a smashing signing for the Hoops, when he joined from FC Midtjylland in January 2016. Initially one of the few decent performers in the second half of Ronny Deila's last season, he was also a firm fixture in the Celtic side when Brendan Rodgers arrived at the club.

For the past 12 months though he's struggled not just with injuries but also form when available and has made just two appearances for the Hoops all season.

Having been fit to play for a number of weeks now without being selected, there seems to be little scope for him to return to the starting eleven and become a reliable defender and so moving him on seems like the best option for all concerned.

Still just 26 years old and with caps for Denmark, he'd likely have some resale value, which could be the difference between Celtic signing a quality player and not before the end of the transfer window.

Cristian Gamboa

Cristian Gamboa is another player in Brendan Rodgers' squad that has made just two appearances this season and appears to be struggling to find a future at Celtic Park.

The Costa Rican international has never been a first pick at the Hoops, with the experienced and popular Mikael Lustig holding down his first team place consistently, even through patches of a poor form.

He's only made 23 appearances in total since joining from West Brom in 2016 and with 18 months left of his contract, now would be the right time to realise any transfer value in the player.

Rodgers has cover for Lustig in the form of youngster Anthony Ralston and arguably needs to bring in another right-back to compete for first team places. Gamboa isn't and will likely never be that player.

Liam Henderson

Liam Henderson has had an interesting career to this point, winning trophies with three clubs in two countries despite being still just 21 years of age.

However, his career has stalled at Celtic, failing to make a single start for Brendan Rodgers this season and appearing just once from the substitute's bench.

A talented and packed Hoops midfield has meant the youngster has been frozen out of regular football and a once promising player at Celtic Park now looks like having to move elsewhere to reach his potential. There are five or six players ahead of him in the pecking order and he's shown little sign of breaking that pack.

There is undoubtedly talent there, but perhaps not at the level Celtic require.