Republic of Ireland manager Mick McCarthy could delay naming his final squad for the upcoming games against Switzerland and Bulgaria as he waits to see whether some of his key players get game-time with their clubs.
Southampton's Shane Long, Burnley trio Jeff Hendrick, Robbie Brady and Kevin Long, and Newcastle's Ciaran Clark have all yet to make a Premier League appearance this season.
Hendrick did play in a friendly for Burnley midweek and McCarthy told FAI.ie: "Jeff needs to get game time into his legs so it was great he played in the game on Wednesday.
"I have no doubts about Jeff's ability or his fitness, he has covered so much ground for us in this European Championship already as the stats prove, but like all our players, he needs to play.
"He might feature against Wolves in the Premier League on Saturday and Jeff should be involved in the League Cup game at home to Sunderland next Wednesday night, which we will have scouted.
"Our main concern at the moment is still about players getting games but Darren Randolph and Keiren Westwood are playing well, the four Sheffield United players (John Egan, Enda Stevens, Callum Robinson, David McGoldrick) are all starting, as is Scott Hogan, while Robbie Brady is still recovering from his rib injury.
"I'll probably see where we are after the League Cup games next week before making a final decision on the squad for Switzerland and after that, we can always add players from the provisional squad for the Bulgaria game."
Ireland face the Swiss in a crucial Euro 2020 qualifier on 5 September at the Aviva Stadium before welcoming Bulgaria on 10 September for a friendly.
Another player whose fitness is being monitored is 17-year-old Spurs striker Troy Parrott, who celebrated his first international call-up last Friday with two goals for the Tottenham Under-23 side in a 3-1 win against Manchester City that same day – and also picked up an injury in the game.
"Troy got a dead leg in that match and we are in touch with the medical team at Spurs to see how he is doing," said McCarthy.
"He is still a doubt for their Under-23 match against Derby at Enfield on Friday afternoon but Terry Connor is going to the game."