Arsenal duo Chiori Johnson and Tyrell Robinson have penned pro terms.

Johnson, a strong full back with excellent distribution, has been a regular for Arsenal Under-18s in the Premier Academy League and Under-19 Uefa Youth League this term. He has also featured three times for the under-21s. The London-born 17-year-old came through Arsenal's Hale End academy.

Robinson, also 17, is a winger with a keen eye for goal. He has scored four goals in seven appearances for the under-18s so far this season, also netting against Galatasaray in the Uefa Youth League. The Basildon youngster has appeared twice for the under-21s this season.