Newly-promoted London Welsh have signed Australian forward Lachlan McCaffrey from Super 15 side Brumbies.
Saracens have announced that this season's home Premiership clash with Harlequins on March 28 has been switched to Wembley.
Saracens are set to complete a short-term deal for US Eagles international Thretton Palamo.
US Eagles winger Brett Thompson has signed a 12-month deal with Edinburgh.
Welsh rugby player Christopher Edwards has been suspended from sport for three years following an anti-doping violation.
Alex Corbisiero is confident the decision to rest his troublesome knee this summer will pay dividends.
Northampton will begin the defence of their Aviva Premiership crown at home to Gloucester on Friday, September 5.
Luke Treharne will make his international Sevens debut for Wales at the Commonwealth Games in Glasgow.
London Welsh boss Justin Burnell wants his players to be thinking about more than just Aviva Premiership survival.
Wasps director of rugby Dai Young has added prop John Yapp to his squad ahead of the 2014/15 season.