Welker, 37, began his NFL career with the Chargers back in 2004. He joined the Dolphins during his rookie season and was eventually traded to the Patriots in 2007 for a second- and seventh-round pick.
Welker played six years for the Patriots and totaled 1,000 yards receiving in five of those seasons before he departed and signed a free agent contract with the Broncos in 2013. He ultimately finished out his career with the Rams.
After calling it a career, Welker was hired by the Texans in 2017 as an offensive assistant.