I guess that at least confirms that Martinez isn't going anywhere, despite the best efforts of bored journalists to suggest otherwise.
Even if Emery trusts Olsen the age profile of our keepers isn't great. I know they generally can play longer than outfield players, but both of them are in their 30s. Hopefully the lad gone on loan has a great season and can make the step up to number 2 sooner rather than later.