49ers’ Shanahan mum on how injuries impact defensive line options

SANTA CLARA — Defensive ends Leonard Floyd and Yetur Gross-Matos are not expected to open their initial seasons with the 49ers on the Injured Reserve list, despite knee injuries in Friday night’s preseason finale in Las Vegas.

While Floyd is considered day-to-day, Gross-Matos is more week-to-week without mention of an IR stint, coach Kyle Shanahan said Sunday on a media conference call.

The 49ers lack experienced defensive ends behind stalwart Nick Bosa, and Shanahan refused to reveal...