Thursday 1 September 2016 08:55, UK
Hal Robson-Kanu, one of the stars of Euro 2016, could be omitted for Wales' World Cup opener as he is still without a club.
Wales striker Robson-Kanu became a free agent before the Euros, in which he impressed with goals against Slovakia and Belgium, after choosing to end his 12-year stay at Reading.
But there has been no announcement on Robson-Kanu's club future, even though he said in France that he had received offers from clubs both at home and abroad.
Asked if having no club would count against Robson-Kanu regarding selection for their 2018 World Cup opener, Coleman said: "Yes, of course.
"We know what Hal's capable of. But I've got to look at the players in the training sessions and see who's ready, physically and psychologically.
"If I have to upset one or two it's not the first time I've done it.
"You don't want to, but you have to play your strongest team and I'll be picking the strongest team possible to get that result."
Wales meet Moldova on September 5 with Burnley striker Sam Vokes expected to lead the forward line alongside Gareth Bale.
Vokes scored his first Premier League goal against Liverpool last weekend and has impressed for the promoted Clarets this season.
Simon Church is getting familiar with a new environment at Dutch club Roda JC, while Robson-Kanu's future is expected to be resolved this week.
"Hal had a great tournament for us, an incredible campaign as well, so he's obviously attracted attention," said Coleman.
"I'm sure he's doing what's right for himself, and there's nothing wrong with that.
"But the sooner it's settled the better it is for us.
"I'm hoping and praying that it will be done soon, because he can get on with it and we can get on with it."
Coleman said it is vital Wales begin the World Cup campaign in the same positive fashion that they attacked the Euro 2016 qualifiers.
On that occasion they took seven points from the first nine on offer and shrugged off the tag of being slow starters.
"How many times have we finished strong at the end of one campaign and say the next one is going to be the one?" said Coleman.
"Then wallop! Nothing. We've threatened before, promised everything and then delivered nothing.
"So this first one - and it doesn't matter if it's home or away - you set your stall out, set down a marker. That's what we're going for."