Those who submit STAFF changes, please provide an official source that shows the transfer/release. Transfermarkt isn't always trustworthy when it comes to staff.
2000306389 · Contracted to Valur Reykjavík
Jón Grétar Jónsson is a 58 year old Managing Director from Iceland.
They are currently contracted to Knattspyrnufélagið Valur Reykjavík.