49ers rookie DT Gracen Halton impresses in his first preseason game Sports · 2026-08-19 00:10:58 Sources Yahoo Sports: 49ers rookie DT Gracen Halton impresses in his first preseason game Yahoo Sports: Derrick Harmon bullies Steelers O-line to win training camp MVP Yahoo Sports: 49ers' Trent Williams compares rookie to 15-sack former teammate