The Eagles beat the 49ers so hard the NFL had to change its rules
49ers CB Jason Verrett also changing his jersey number
Notable Players to Wear No. 4
49ers news: 5 players on the 49ers who should wear No. 0 - Niners Nation
Raiders News: New players' jersey numbers revealed - Silver And Black Pride
Four 49ers among top 50 NFL players in merchandise sales
Picking a jersey has uniform appeal among 49ers' players and fans
Eagles jersey number updates, including Landon Dickerson switching to No. 69 - Bleeding Green Nation
NFL jersey number rule change: 49ers WR Deebo Samuel eyeing new number
San Francisco 49ers Top Jersey Numbers 1-50 - LAFB Network
NFL doesn't allow players to switch numbers during season - NBC Sports