OLD Bhoy Youssouf Mulumbu will have something to prove when he plays against Celtic at Rugby Park.
The 33-year-old midfielder will be battling for his future when he plays for Kilmarnock after agreeing a six-month deal on Friday.
Mulumbu, who was taken to Parkhead by Brendan Rodgers, hardly figured in the first team and was released by Neil Lennon last summer with a year still to run on his contract.
The DR Congo international has until February to prove to manager Alex Dyer he is worth an extension during his third time at the Ayrshire outfit.
The Hoops, who dropped two points in Ayrshire in a 1-1 draw earlier this month, are due to play at the venue again on December 12.
Mulumbu, who had been out of football for a year but had been training at Championship outfit Birmingham City before returning to Killie, told the Glasgow Times: “For me, nothing changes, it is family.
“I came back in training and knew all the lads in the dressing room, so it was easy for me to adapt myself.
“I needed to get my fitness back and that is what I am trying to do. Once I get on the pitch, I’ll be ready to get going and help the team.
“I’m so glad to be back and with the lads. Everything the same, the lads are the same, the energy is the same.”