7:47 PM - Drake Jackson (SF) 49ers placed Jackson on the reserve/PUP list with a knee injury, Field Yates of ESPN reports.

5:56 PM - Drake Jackson (SF) coach Kyle Shanahan told reporters Monday that Jackson (knee) isn't expected to return during training camp, Lindsey Pallares of the 49ers' official site reports.

6:41 PM - Drake Jackson (SF) 49ers placed Jackson (knee) on the active/PUP list Tuesday, David Lombardi of Athletic reports.

5:48 PM - Drake Jackson (SF) (knee) was placed on injured reserve by the 49ers on Saturday, Matt Barrows of The Athletic reports.

5:09 PM - Drake Jackson (SF) (knee) has been ruled out ahead of Sunday's game against the Jaguars, Nick Wagoner of ESPN.com reports.

11:36 AM - Drake Jackson (SF) recorded three sacks during Sunday's 30-7 win over the Steelers.