Burnley suffered an injury setback in the victory at Bradford, with Ashley Barnes and Lukas Jutkiewicz both suffering hamstring injuries.
Barnes walked off three minutes before the break, while his replacement, Jutkiewicz, did not appear for the second half of the 4-1 win at Valley Parade.
However, manager Sean Dyche is hopeful both are minor tweaks, after telling his players not to be “heroes”.
The gaffer said: “Ashley felt his hamstring and that’s why he just walked straight off.
“I’ve told the players to do that. There are no heroes at this stage and as soon as they feel anything at all they have to head off, because then there’s a shorter recovery period.
“We hope it’s a minor one, but we’ll have to wait and see.
“Lukas was going to come out for the second half, but his hamstring was tight when he was warming up, so I said not to push it. We want people fit.”
Fellow striker Andre Gray made it four goals in three pre-season games with an early brace against the Bantams, with Ben Mee and Michael Kightly rounding off the scoring either side of a Filipe Morais’ strike.
Dyche added: “There were some fine goals as well it was a really good work-out in a good environment.
Gray opens the scoring
“Every game is a new challenge and we are building and looking for that balance.
“The early games are purely fitness, and then we’ll look at fitness and performance and I thought there were good signs and a good physicality to today’s performance.
“There are some really good signs, but will all due respect to Bradford, there are going to be bigger, higher quality clubs coming.
“It’s good practice, but we can only do it one step at a time in pre-season by building the mentality and the fitness and, of course, the organisation of the side and I was pleased with all that today.
Goalkeeper Nick Pope, and Development Squad duo Josh Ginnelly and Dan Agyei all made their Clarets debuts in the second half.
Dyche added: “It’s good to get the young players out. They are young players who have trained with us before and experienced our first team squad.
“It’s important they get that exposure, in training and out on the pitch, so that bodes well.”