News of the interviews was first reported by Sports Illustrated, per Wilson.
Welker has worked with the Texans receivers alongside wide receivers coach John Perry. Included within that group are DeAndre Hopkins and Will Fuller, the former of whom finished the 2018 season with 115 receptions for an AFC-leading 1,572 yards and 11 touchdowns.
Welker, 37, is a five-time Pro Bowl selection and two-time first-team All-Pro. The San Diego Chargers signed him as an undrafted free agent out of Texas Tech in 2004, and he went on to play for the Miami Dolphins, New England Patriots, Denver Broncos, and St. Louis Rams.
Welker led the NFL in receptions three times (2007, 2009, 2011) and holds the record for the most receptions by an undrafted player in NFL history (903) to go along with 9,924 receiving yards and 50 receiving touchdowns over his career.