Melbourne Rebels winger Monty Ioane is set to leave Super Rugby and make his return to Europe with Lyon in the Top 14.
Exeter boss Rob Baxter hailed Sam Simmonds as a player “almost impossible to handle” following the Chiefs’ dramatic Heineken Champions Cup triumph against Montpellier.
Exeter reached the Heineken Champions Cup quarter-finals on try count after extra-time following a dramatic 33-33 draw with Montpellier at Sandy Park.
Two former Bath players - Zach Mercer and Henry Thomas - are on the verge of Top 14 glory in their first season at Montpellier after quitting the Gallagher Premiership strugglers.
Tigers let a seven-point lead slip against Montpellier to miss out on a first European title since 2002.
Leicester and Montpellier have named their teams for Friday night's Challenge Cup final at Twickenham which will have 10,000 fans present.
But Montpellier gatecrashed the party, with flanker Yacouba Camara scoring a try and scrum-half Benoit Paillaugue kicking a conversion and three penalties, before Handre Pollard booted an 80th-minute penalty.
Unlike football's transfer windows, rugby's system leads to situations such as Zach Mercer playing for Bath against his new club Montpellier.