The 21-year old joined Championship side Brentford – then managed by Gers boss Mark Warburton – in January but has yet to appear for the club.
The Scotland Under-21 international limped off against Alloa last December in what has proven to be his last taste of action, but a return now appears imminent.
Brentford boss Marinus Dijkhuizen has revealed that the former Ger is back in training and will soon be in contention for a place in the senior squad if everything goes well with the development side.
“Lewis is getting better. He’s been training with the group," said Dijkhuizen, in quotes published by the Daily Record.
“I hope he’ll play with the Under-21s in a week or two. He’s looking good.
“He has a lot of qualities he can add to the team. He’s on the way back and finally over his injury problems.”
Scotland fans will be closely following the progress of what was one of the country’s brightest talents before his hamstring troubles put his burgeoning career on hold.
The Rangers academy product was a vital component of the club’s rise through the divisions from 2012 onwards and fans will be curious to see how the prodigious midfielder handles himself in England’s second tier.