Arsenal have announced deals for three new youth team signings.

Joel Lopez, Sam Greenwood and Karl Hein have signed as first year scholars.

Lopez joined from Barcelona earlier this year. The 16-year-old left-back is a product of Barcelona's La Masia academy, where he played a key part in the under-16 side before leaving the club.

Greenwood has joined from Sunderland, where he featured as a striker in both the under-16 and under-18 sides. The 16-year-old England international scored six goals and provided six assists for Sunderland's under-18 side in the league last season.

Hein has signed from FC Nomme United. The 16-year-old goalkeeper plays for the Estonian national team at under-17 level.