David Moyes says the prospect of playing Champions League football was the key factor behind Mikel Arteta joining Arsenal on transfer deadline day.
Arteta moved to the Emirates Stadium on a four-year deal late on in the transfer window.
Moyes told the club's official website: “Mikel indicated to me that he wished to join Arsenal if a bid came in.
"I am very disappointed to lose him but the prospect of Champions League football was something I wasn’t able to offer him.”
Moyes will now hope his thin squad can cope with Arteta's departure, with Marouane Fellaini, Jack Rodwell and 17-year-old Ross Barkley expected to fill the gap left by the former Rangers man.
Everton finally made their first first-team signings of the summer on the final day, bringing in Argentine forward Denis Stracqualursi and Dutch wide man Royston Drenthe on season-long loan deals.