By Wilton Jackson The former Commanders quarterback spent time with the franchise during the 2015 to ’16 season. View the original article to see embedded media. The Raiders signed quarterback Garrett Gilbert to a contract, according to his agents at Steinberg Sports. After spending most of the 2021 regular season on the Patriots practice squad before playing with the Commanders, Gilbert returns to a Raiders franchise where he played during the 2015 to ’16 season. Gilbert also has a familiar relationship with Raiders first-year head coach Josh McDaniels, who had two lengthy stints on Bill Beli…