Liverpool, Manchester United, Southampton and Everton are all also reportedly interested.
The Danish international is fast emerging as one of Europe’s hottest young talents, with his performances in Nordsjaelland’s under-19 side earning rave reviews.
They have since been joined by the likes of Southampton, Everton and Manchester City, with those three also reportedly interested in the youngster as reported by the Sun.
And now Arsenal are among the Premier League suitors, with them reportedly eyeing a move for the youngster, according to the Independent reports.
Mor’s representatives reportedly met in Copenhagen in midweek to discuss the 18-year-old’s future, with him yet to sign a professional contract at his current club.
The English side’s would face competition for his services though, with Borussia Dortmund and Ajax also rumoured to be keeping track of the situation.
Arsenal would be confident of securing the starlet though, with their record of developing young talent sure to be a big attraction.