Parramatta rookie Dylan Brown has agreed to a new three-year extension with the Eels to keep him at the club until at least 2023.

NRL.com understands the Eels and Brown's management came to an agreement on Tuesday afternoon to ensure the young Kiwi doesn't depart the Eels despite plenty of interest from rival clubs.

The Eels are expected to upgrade Brown's contract for 2020 and have offered him around $650,000 a year for the following three years.

Brown made his NRL debut in round 1 and contributed four tries and five try assists in 15 games.

He scored twice in Parramatta's record-breaking 58-0 finals win over the Broncos in the first round of the playoffs, and represented New Zealand in October's World Cup 9s tournament.