September 8, 2021 6:19 pm How old was Trey Lance when Tom Brady made his NFL debut? Tom Brady is starting his 22nd season in the NFL. Here’s how old some other NFL QBs were when Tom Brady made his NFL debut. 49ers videos 0:58 49ers Talk: 49ers sign Terrell Owen's son Terique as undrafted free agent 1:25 49ers Talk: Is ‘writing on the wall' for Samuel's future in San Francisco? 1:30 Watch Brenden Rice's receiving highlights from USC 1:32 Watch Frank Gore Jr.'s rushing highlights from Southern Miss 5:42 49ers' seventh-round pick Bethune models game after Greenlaw