4. Marcus Smith
Bath have reportedly launched a huge move to try and sign Harlequins star, according to the Mail Online. The 21-year-old, who has also been linked with a move to Lyon in the Top 14, will be out of contract in 2021 when his current three-year contract comes to an end.
Smith, who currently earns £230k per season, is one of the most exciting prospects in world rugby could potentially double his earning to around half a million with his next move.