There's an inordinately large number of people on here spelling his name wrong. Its Boufal - not Boufel - just for the record.
I'm not really sure if he is still being rehabilitated, from his previous injury, or if he is effectively going through his pre-season training, to get him up to match fitness. If it is the latter, there may be potential for him to come off the bench, for 15/20 minutes, if there is just one goal in it, or all square and pushing for the winner. Wouldn't want him rushed through and picking up a needless muscle/ligament injury.
He'll have to be with us for at least a year before Arsenal buy him. I thought you knew how it works.
Højbjerg is easy, as long as you remember the ø, this apparently giving the letter O a monophthongal close-mid front rounded quality like the œu in the French bœuf.