I'm not worried about the Wolves friendly and will be delighted if we field a front 3 including Mateta and Olise for the opening Premier League game.
I suspect they will be given a break though after the Olympics which has to leave some doubt.

Only a guess from me - answer is no
Reason? The Olympic football tournament does not have a recognized window on the FIFA calendar hence why clubs can refuse to let their players play in in it. It's not, therefore, an approved FIFA tournament.

And in news as unsurprising as 'Grass is green', JPM has been confirmed in the France side for the Olympics having also scored twice in their first friendly last week.

Their group is an absolute doddle (USA, Guinea, New Zealand) so they should cruise to the Semi Final. That'll mean the Bronze or Gold medal match the week before the season starts.

If Mateta chooses to take up a small amount of time off (which apparently the club have offered), he would probably miss the first game at Brentford.

On the bright side, we now only have 1 player in the France squad!

26th January 2010 - Enter Administration
2nd May 2010 - D-Day 1 - Survival at Hillsborough
1st June 2010 - D-Day 2 - Survival at Lloyds
7th June 2010 - CPFC2010 exchange contracts.

Hurrah!

I didn't actually post it, but for a while I've thought to myself: if Olise is going to go, please would he go before the Olympic games starts? Otherwise you just know what would have happened...crocked, another season of recuperation at our expense then a postponed lucrative move away.

Palace since 19 August 1972. Palace 1 (Tony Taylor) Liverpool 1 (Emlyn Hughes)

On a positive note, Mateta will be playing alongside the cream of young French players and can extol the virtues of playing for Palace and Glasner. This may well give us the head start for the talent in the squad with Olise there to show as a example.

I'm with Doom bear on this - According to Google the Olympics dosent even start till the 26th July & given that its only in Paris getting JP back for pre season baseline testing for couple days is barely even a story, for the media to headline it as "he had been recalled" is just clickbait trying to make it sound like one.