The Chargers spent a 7th-round pick on RB Justin Jackson. The Northwestern alum spent 4 years as a workhorse, averaging 285.5 carries, 1,360 yards and 10.5 total TDs per season. Jackson added 122 receptions for 858 yards for his career, including 35 and 44 catches the past 2 years. He joins a backfield that saw Austin Ekeler flash as Melvin Gordon's #2 last season, but there's room for Jackson to battle for touches. The diminutive back ran a decent 4.52-second 40 at the Scouting Combine but crushed the explosion and agility tests: 89th percentile vert, 78th percentile broad, 85th percentile 3-cone, 93rd percentile short shuttle. Jackson will be worth watching this summer and beyond and belongs on the dynasty radar late in rookie drafts.