Dave Jones will use tomorrow's game at The County Ground to get on pitch action for his squad before using the Valencia game to shape the side ready for the opening game of the season on August 8th at home to Scunthorpe.
"We'll mix it around again," said Jones of the trip to Swindon.
"We've got another game to come after that but I've not any thoughts of my best line-up at this moment in time because I'm still getting them fit.
"So if I can give them as many minutes on the pitch and, at the same time, they get fitter and fitter, then whenever someone needs to slot in they will know the position. It can be a case of one for one all the time."
Swindon is pay on the day £10.00 for adults. The adult price for a Valencia ticket is £15.00.
Tickets for Valencia are on sale on from the ticket office (0845 345 1400) and via the online booking facility.