Ryan said he's unsure where he stands with Prandelli but hopes his absence won't be a setback as he looks to re-establish mercurial v green himself as the club's first-choice goalkeeper.
Former Italy coach Prandelli was appointed at the helm of the struggling La Liga club last week, becoming the fifth manager magista orange Ryan will have played under since his move in July 2015.
The 24-year-old was there for Prandelli's official introduction but had to leave to join the Socceroos squad ahead of their 2018 FIFA World Cup qualifiers against Saudi Arabia and Japan.Ryan has played only Mercurical Victory VI black 10 league matches for third-bottom Valencia and faces an uphill battle to unseat Brazilian Diego Alves for a starting spot.
"My understanding is that the whole squad starts from scratch," he said.
"I can't imagine someone of his stature and coaching ability would hold it against me that I'm away with the national team and not working with him from the outset.
"If that was to influence his tiempo legend v grey decision then it'd be a bit harsh."
Socceroos coach Ange Postecoglou is watching closely, particularly with Mitch Langerak in good form for his German second-tier club Stuttgart.
Langerak only arrived in Jeddah on Tuesday after completing his club duties, meaning Ryan is tipped to start in goal at the King Abdullah Sports City, where he knows he needs to perform well to keep his position.
"It's similar to my club - one bad day can be enough to lose your spot," superfly v red he said.
Ryan is in no doubt to play despite reports from Spanish media suggesting he was to miss an extended period due to a knee strain he suffered in a freak training incident.