We sure can. You can also release and sign other players until June 30. This should help a few people
As it stands each outfit must confirm a top 24 roster for 2020 with the NRL as of November 1, the start of rugby league's financial calendar, with 29 players to be signed on when the playing season starts in the first week of March.
Clubs then have up until the traditional June 30 deadline to sign a final player to fill their top 30 squad, with between three and six players also retained on development contracts.