Listen to BBC radio and follow live text commentary from Sunday's games in the Premiership, including Saracens v Sale Sharks.
Team news as Northampton Saints host Worcester Warriors in Saturday's Premiership fixture at Franklin's Gardens (15:00 GMT).
Christian Day and Luther Burrell are among 11 Northampton Saints players to have extended their contracts.
Northampton chairman Tony Hewitt will step down at the end of the season, to be replaced by ex-Saints player John White.
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Northampton Saints chief executive Allan Robson says that player wages will "challenge" the club in future seasons.
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How to get into rugby union - into the thick of the 15-player game or try rugby sevens, which made its Olympic debut in 2016.
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