It has renewed its 'official beer' status with the Sharks and has entered into a similar deal with Saracens.
The agreements mean an exclusive position for the Tetley's brand including signage and pouring rights.
In return, it will plough money into both clubs and will work closely with their marketing departments to achieve both parties' objectives. This will include building awareness of the clubs' activities and increasing beer sales at the respective grounds.
Brewers Tetley's has signed sponsorship deals with two English Premiership rugby clubs.
