The 28-year old is nearing full fitness but faces stiff competition for a first-team spot.
He said: “He trained this morning, he’s got a niggle that’s been bothering him and he’s getting some specialist advice on Monday but he’s very close now."
Bell's performances for Killie caught the attention of the big hitters in Scottish football and earned him a call up to the national side.
The 28-year quickly became first-choice at Ibrox following his arrival from Kilmarnock in 2013, but missed much of last season through injury.
His Rangers career hasn’t gone entirely to plan on the pitch either, and last season’s promotion play-off disaster was a particularly testing time for the Gers stopper.
Mark Warburton’s arrival facilitated the signing of Wes Foderingham - who has now established himself as first choice - and Bell faces a tough task to even make the bench once he returns to fitness.
When asked whether he would look to give Bell game time, Warburton replied:
“(When fit) Cammy becomes the same as any member of the squad – there’s no differentiation for a goalkeeper.
“Cammy knows how it works. Wes (Foderingham) has been first class, Liam (Kelly) has been excellent as his deputy so Cammy knows what he has to do.”
“I’m sure he’ll relish it,” added the Rangers boss.
Just how long he’ll relish the challenge without seeing game time is another matter entirely, but in Foderingham and the impressive youngster Luke Kelly, Bell’s chances of a swift return to the first-team set-up look slim.