Widely dismissed as contenders for relegation before they had even kicked a ball, Huddersfield produced a typically-energetic display to outclass their experienced hosts, earn three vital points and climb to first place.
Palace's players were jeered as an own goal from Joel Ward and two strikes from Huddersfield's £11.5million record-signing Steve Mounie confirmed the 3-0 loss.
Mooy's Huddersfield travelled to London for their first top-flight clash in nearly five decades and came away with three points after a 3-0 win over Crystal Palace.
"I am seeing him in our system as a right centre back but he can also play full back in a 4-3-3".
Yiadom will be Huddersfield's ELEVENTH signing in a hectic summer of transfers following promotion to the Premier League.
The Eagles improved after the interval but despite their pretty play they struggled to create chances, while their defence continued to look shaky.
"We want to make a solid club and if we achieve that then I am as happy as when I lifted a trophy".
Elsewhere new signings Ruben Loftus-Cheek, Jaïro Riedewald and Timothy Fosu-Mensah are in the provisional squad and are all expected to be involved in the Eagles' opening game. "The consequences of our work has shown and we hope we do well in the next game".
"It is unbelievable, a start like this and for me to score two goals on my Premier League debut".
Because the Dream Team game - the UK's biggest fantasy football game - is back and better than ever this season.