Video shows Chiefs star Mahomes making progress in NFL comeback

The 30-year-old star, a two-time NFL Most Valuable Player, led the Chiefs to five Super Bowls in six seasons and three crowns before the club slumped to 6-11 last year. Last December, Mahomes suffered torn left knee ligaments and underwent surgery to repair them with no timetable of when he might return. Three months later, Mahomes was shown in a video posted on social media by the Chiefs in which he dropped back and threw a pass. In January, Mahomes said his recovery was "going great" and that...