Anthony Joshua wants to face six fighters before hanging his gloves.
Joshua made the revelation in a YouTube interview with Sky Sports Boxing.
Joshua named Oleksandr Usyk, Deontay Wilder, Tyson Fury, Luis Ortiz, Jarrell Miller and Adam Kownacki.
The first name he listed was unbeaten Ukrainian Oleksandr Usyk, who has moved up to heavyweight after dominating the cruiserweight division.
The Brit then named Tyson Fury and Deontay Wilder, who are set to face off for a third time later this year.
Veteran Luis Ortiz was also listed along with Jarrell Miller, who Joshua was supposed to face last year before he failed a doping test.
Surprisingly, the lesser known Adam Kownacki completed the six, a hard-hitting Pole whose 20-fight win streak came to an end in March
The 30-year-old, who holds the WBA, WBO and IBF belt, has his sights set on becoming the first undisputed heavyweight champion since Lennox Lewis in 1999.