I don't think he can come back 12.2.4.2.3 exception says he would have to have withdrawn within 72 hours following the NFL draft declaration date. I believe that date was early February.
http://www.ncaa.org/library/membership/div...8_d1_manual.pdf
12.1.2 A mateur Status. An individual loses amateur status and thus shall not be eligible for intercollegiate
competition in a particular sport if the individual:
(a) Uses his or her athletics skill (directly or indirectly) for pay in any form in that sport; (Revised: 4/25/02 effective
8/1/02)
(b) Accepts a promise of pay even if such pay is to be received following completion of intercollegiate athletics
participation;
© Signs a contract or commitment of any kind to play professional athletics, regardless of its legal enforceability
or any consideration received;
(d) Receives, directly or indirectly, a salary, reimbursement of expenses or any other form of financial assistance
from a professional sports organization based on athletics skill or participation, except as permitted by NCAA
rules and regulations;
(e) Competes on any professional athletics team per Bylaw 12.02.4, even if no pay or remuneration for expenses
was received; (Revised:4/25/02 effective 8/1/02)
(f ) After initial full-time collegiate enrollment, enters into a professional draft (see also Bylaws 12.2.4.2.1 and
12.2.4.2.3); or (Revised: 4/25/02 effective 8/1/02, 4/24/03 effective 8/1/03 for student-athletes entering a collegiate
institution on or after 8/1/03)
(g) Enters into an agreement with an agent. (Adopted:4/25/02 effective 8/1/02)
12.2.4 Draft and Inquiry.
12.2.4.1 Inquiry. An individual may inquire of a professional sports organization about eligibility for a professional-
league player draft or request information about the individual’s market value without affecting his or
her amateur status.
12.2.4.2 Draft List. After initial full-time collegiate enrollment, an individual loses amateur status in a particular
sport when the individual asks to be placed on the draft list or supplemental draft list of a professional
league in that sport, even though: (Revised: 4/25/02 effective 8/1/02)
(a) The individual asks that his or her name be withdrawn from the draft list prior to the actual draft;
(b) The individual’s name remains on the list but he or she is not drafted; or
© The individual is drafted but does not sign an agreement with any professional athletics team.
12.2.4.2.3 Exception—Football. [FBS/FCS] In football, an enrolled student-athlete (as opposed to
a prospective student-athlete) football may enter the National Football League draft one time during his
collegiate career without jeopardizing eligibility in that sport, provided the student-athlete is not drafted by
any team in that league and the student-athlete declares his intention to resume intercollegiate participation
within 72-hours following the National Football League draft declaration date. The student-athlete’s
declaration of intent shall be in writing to the institution’s director of athletics. (Adopted: 10/31/02; Revised:
4/14/03, 12/15/06)