The 31-year-old sportsman has attended the Philippine training camp in the past as a sparring partner. Zajani boxed at lightweight and returned to the ring in the spring after a two-year hiatus.
Recently, Pacquiao, who retired from professional football last year, officially confirmed that he will have an exhibition bout at an evening in South Korea on December 10 against Asian social media star DK Yoo. Both fights will not have official status and will not be included in the boxer's track record.