Harry Davis could return to the defence having been an unused substitute against Bournemouth last week following a toe injury, while fellow defender Matt Tootle is also in contention.
Byron Moore, Max Clayton and Ryan Colclough all came off the bench to help draw the Railwaymen level in the 2-1 defeat to the Cherries and the trio are pushing for places in attack, where Mathias Pogba is expected to start having missed the first-leg due to international duty with Guinea.
"We will have a look at things today and decide what we are going to do," Davies told Crewe's official website. "It is always nice to have everyone available and to have that choice.
"I can change the personnel around to suit our game plan and hopefully we can surprise Coventry with one or two things again."