The £3m summer arrival from Newcastle United, who has been sidelined for seven months with a cruciate knee ligament injury, played his first competitive match last Monday, getting over an hour under his belt as Rovers defeated Sunderland 2-1, and he'll continue his rehabilitation with another match tomorrow afternoon at Middlesbrough's Rockliffe Park.
Manager Michael Appleton was in attendance at Leigh Sports Village to check on the striker and will do so once more on Monday. If the striker comes through the game unscathed, he could come into contention for a first league outing the following Saturday against Peterborough United.
"Leon is getting closer, he's been training with us for about two weeks now," said the Rovers boss.
"He got 70 minutes against Sunderland the other night in the Reserves and he is going to play in another Reserve team fixture at Middlesbrough on Monday.
"So I'll get myself up there and have another chance to have a look at him.
"I'm sure that if he comes through it fine and gets 90 minutes or as close to 90 minutes as possible, knowing Leon the way I do, despite the short time I've been at the football club, I'm sure he'll be desperate to be involved next Saturday."