NRL boss Todd Greenberg has empathised with Parramatta fans hurting over the decision to allow Kieran Foran back to the game in round three.

The governing body on Wednesday announced that it had registered Foran's contract with the Warriors, six months after his release from a long-term deal at the Eels for personal issues.

Foran will now have to wait until the Warriors' clash against Canterbury to make his return to the NRL, an enforced rest some Eels supporters believe is too short.

"I can understand why Parramatta fans would be disappointed," Greenberg said.