If the local youngster is deemed unfit to start then Scott Brough is likley to switch to the right wing in his place.
Brough played out on the left wing at Deepdale on Wednesday evening, but with Peter Beagrie returning to the side he will only make the starting XI if Sparrow doesn't.
Former Scottish international Stephen Wright is set to make his home debut at right-back as Nate Stanton serves the first of a two match suspension following his sending off against Bristol Rovers.
Wright made an impressive debut on Wednesday, and is playing on non-contract terms.
He will be the second defender making his first start of the season at Glanford Park, as Jamie McCombe will come into the side as James Cotterill faces a two month layoff with a broken leg.
Kidderminster meanwhile will unveil two new signings of the own in tomorrow's match.
Harriers manager Ian Britton has brought in JJ Melligan and Mark Clyde on loan this week to bolster his side.
Melligan is a 20-year-old Irish midfielder, while Clyde is a central defender. Both move to Aggbrough from first division Wolves.