"He had a personal matter in the last few hours and we had to send him back", the Spaniard told Arsenal's website before the contest.
Since taking charge of Arsenal, Arteta has shown he can be ruthless towards players as he has appeared content leaving Ozil, a World Cup victor with Germany and reportedly one of the club's highest earners, out of the team.
"I'd like to thank the club for this incredible journey over the past seven-and-a-half years".
That they were starting in an Arsenal side that Arteta had clearly rotated for this FA Cup tie spoke volumes about each player's standing, and Crouch said they should have been eager to prove themselves to the manager.
Because of his huge wage demands, in a weird move Fenerbahce, who are massively in debt, have asked their supporters to help pay Ozil's salary by donating money to the club after his Arsenal contract was terminated six months early.
"Every German-Turkish person supports a Turkish team when they grow up in Germany", he said.
"But it is important to look for the positives in life and not negatives, which is why I try to live life with no regrets and holding no grudges".
He added: "Arsenal is a club of class and prestige, something that I felt every time I walked on to the pitch".
Six-time winners City were minutes away from exiting at the fourth-round stage before goals from Phil Foden, Gabriel Jesus and Ferran Torres broke the hearts of the courageous League Two side.
He goes on for a bit, and wraps it up with a final goodbye: "It might be the end of a chapter, but my connection with this unbelievable club will never fade".
Armstrong started his run on the edge of the area and James Ward-Prowse, making his 300 appearance for the Saints, picked him out just inside the box and Scotsman fired the ball past Bernt Leno with a fine first-time strike. Fenerbahce is like Real Madrid in Spain. "The biggest club in the country".
"The way Arsenal play will fit him well, a kind of football that suits him", he told Norwegian media outlet VG.
"Mesut was at the heart of many great moments for this club over the years, including those three FA Cup final wins", Arteta said.
"He's always part of our sessions, he knows what we have to do", he said.