The press conference will be held in Sydney, Australia.
The former Parramatta Eels star clocked in a 4.53 40-yard time. Hayne, who is 27 years old, quit the National Rugby League only 4 months ago.
Hayne won two Dally M Medals for the NRL's player of the year in 2009 and 2014. During a press conference, Hayne shockingly announced his departure from rugby for the NFL in October.
He hopes to play running back in the NFL, but will also likely be used as a return specialist.