BRENTFORD medical staff are optimistic that Lewis Macleod, the former Rangers midfielder who has been sidelined with a serious knee injury since last October, will be ready to return to the first team squad at Griffin Park by September.

The 22-year-old has suffered a series of setbacks since moving to the Sky Bet Championship club in a £1.3 million transfer from Ibrox back in December 2014.

He played 12 games for Dean Smith’s side last season, but injured himself after coming on as a substitute in the second half of a West London derby match against Queens Park Rangers at Loftus Road in October.

Macleod was dogged by similar problems during the two and half seasons which he spent in Ally McCoist's team between 2012 and 2014.

He sustained medial ligament damage in a Third Division game against Montrose and suffered an adverse reaction to a viral infection which affected the muscles around his heart - and recovered on each occasion.

Neil Greig, head of medical at Brentford, is hopeful the former Scotland Under-21 internationalist will be able to take some part in pre-season training and could rejoin the squad early in the 2017/18 campaign.

“As you’d expect with any of our long-term injured players, Lewis Macleod’s summer has largely been spent at the training ground working with medical and performance staff,” Greig told the official Brentford website.

“He had a short break at the end of the season to recharge and has now been back working hard for the last three weeks.

"Lewis has, what we hope will be, his final review with the consultant next week, where we hope to able to agree his final progressions towards team training.

“This, however, is only one part of a complex jigsaw with injuries such as Lewis’s and there are a number of key objective physical markers that he needs to achieve before making a graduated return to the squad.

“It is realistic for us to predict that Lewis will take a monitored part in elements of the squad pre-season training. However, the final stages of his reconditioning will run alongside that through pre-season in order for us to achieve that physical gains that Lewis needs to perform well again in the Championship.

“With that in mind, it’s unrealistic to predict that Lewis will be a fully fit member of the squad for the first league game in August, with a return to the squad at some point in September being more likely.”