Cardiff City have undergone something of an image change since the departure of manager Ole Gunnar Solskjaer, with new boss Russell Slade creating a more workmanlike side.
That has seen the likes of Cala, Magnus Eikrem, Mats Moller Daehli and Javi Guerra left on the sidelines, and all four look set for January exits.
Another player who has recently been on the fringes is South Korean midfielder Kim Bo-kyung, but he was handed a chance to shine against Rotherham - and he didn't take it, leaving Slade frustrated with the 25-year-old.
"Kim won the right to play during his performance in last week’s development match but it didn’t come off for him this time," Slade said. "He was trying to make things happen and was probing, but in terms of an end product we missed out a little bit. Kim earned the shirt last week. Whether he keeps it we will wait and see."
Some fans expect Kim to leave the club in the January transfer window, and Slade's disappointment will only serve to intensify the rumours surrounding his potential departure - which could be music to the ears of Celtic boss Ronny Deila.
Deila admitted in the summer that he wanted to bring Kim to Celtic Park, saying; "That's a guy (Kim) we have been talking about but we haven't done anything concrete."
Now though, Kim could be back on the radar for Celtic, who will need another central midfielder with Beram Kayal seemingly heading back to Israel.
A talented midfielder who can play out wide or in the centre of midfield, Kim would follow in the footsteps of his international team mate Ki Sung-yueng if he does sign for Celtic in January, and the Swansea midfielder would no doubt give a glowing reference to his former club should Kim ask for advice over a move.
Deila is surely monitoring the situation given that he wanted him so much just a matter of months ago, whilst Cardiff's interest in Anthony Stokes could bring around an interesting exchange proposition.