4. Johnny Sexton (Leinster)
The fly-half, who will be 36 when his contract expires, signed his latest deal shortly after he was named 2018 World Rugby Player of the Year. Reports in Japan have suggested the legendary fly-half could end his career in the Japanese Top League.
5. Joe Cokanasiga (Bath)
The powerhouse arrived at Bath from London Irish on a three-year deal in 2018. He’s since became a regular pick for England head coach Eddie Jones and featured at the 2019 Rugby World Cup. The 22-year-old won’t be short of options.
6. Manu Tuilagi (Sale Sharks)
Tuilagi could depart the club in 2021 when his contract expires. The 29-year-old, who moved to the North West following his dramatic exit from Leicester Tigers, is reportedly being lined up to join Racing 92 in the TOP14 ahead of the 2021/22 season.