Harlequins agree a deal to sign South Africa-born Montpellier fly-half Demetri Catrakilis ahead of the 2017-18 season.
Harlequins agree to sign fly-half Ruaridh Jackson from Premiership rivals Wasps ahead of next season.
Leicester Tigers sign South Africa wing JP Pietersen for next season while three players agree new deals with the club.
Harlequins agree a deal to sign Wales international Jamie Roberts from French Top 14 side Racing Metro.
Harlequins agree to sign full-back Aaron Morris from Premiership rivals Saracens ahead of the 2016-17 season.