Question: what are wide receiver numbers?
Answer: All players must wear numerals on their jerseys in accordance with Rule 5, Section 3, Article 3c (see NOTE 1), and such numerals must be by playing position as follows: quarterbacks, punters, and placekickers, 1-19 (and 10-19 for wide receivers if 80-89 are all otherwise assigned); running backs and defensive backs, 20 ...