49ers place safety Jaquiski Tartt on IR with knee injury

More bad news for the 49ers defense. Shortly after Kyle Shanahan confirmed season-ending surgery was on tap for Javon Kinlaw, they placed the second-year defensive tackle on IR. Jaquiski Tartt will join Kinlaw on San Francisco’s injured list, the team announced.

Tartt should not be expected to miss the rest of the season, having suffered a knee contusion against the Colts. But the veteran safety is down for at least the next three games. A seventh-year veteran, Tartt has made 56 regular-season starts but has dealt with injuries for most of his career.

This is a familiar transaction for Tartt, who missed time due to injury in each of the 49ers’ past four seasons. A broken arm moved Tartt to IR in 2017, and a shoulder malady shelved him for part of the 2018 season. A rib injury cost Tartt four games in 2019, but he returned for the 49ers’ three playoff contests, and a turf toe bout ended his 2020 campaign. The turf toe issue dragged into this summer’s training camp, with Tartt beginning on the 49ers’ active/PUP list. He returned in time for Week 1, but more injury trouble has intervened.

Overall, Tartt missed 28 games from 2017-20. These setbacks have not shaken the 49ers’ confidence in Tartt. They extended the former seventh-round pick in 2018 and gave him another new deal this year. The most recent Tartt contract runs only through season’s end, however.

Tartt joins Kinlaw and linebacker Dre Greenlaw on IR. The 49ers will also be without Dee Ford and starting linebacker Azeez Al-Shaair for Week 8. Rotational defensive lineman Kevin Givens is back on San Francisco’s active roster, however, after his IR stay. The 49ers also promoted tight end Jordan Matthews and safety Kai Nacua from their practice squad.