McConkey (undisclosed) left Saturday's practice early and didn't participate Sunday, Daniel Popper of The Athletic reports.
McConkey previously missed a practice Thursday but then returned Friday, only to come up limping during Saturday's session. He left with a trainer and missed the rest of the weekend, with coach Jim Harbaugh acknowledging that McConkey is "working through something" but declining to elaborate any further. The rookie second-round pick has worked with the first-team offense throughout most of training camp, reportedly taking a lot of his snaps from the slot.