Unsure footing has 49ers stealthily replacing Levi's Stadium turf
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NFL installs new turf in Levi's Stadium in preparation for Super
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NFL rumors: League to examine MetLife turf after 49ers' injuries
49ers install first pieces of turf at Levi's Stadium [video
Levi's Stadium turf already under fire again in 2017 – KNBR
49ers' grass is greener at Levi's Stadium – SFBay