Doncaster Knights will start their 2015/16 Championship season at home to newly-relegated London Welsh.
The Exiles will visit Castle Park on the weekend of September 4-6.
The reverse fixture with London Welsh falls on the final day of the season.
Doncaster’s first away trip is to Nottingham, who are the visitors to Castle Park on Boxing Day.
Exact dates and times of the majority of games will only be confirmed after a period of consultation between the Championship clubs.