From the video

Video: 8 Wide Receivers Your Fantasy League Drafts Shockingly Wrong
I'd like him to walk without a limp. ... it just seemed like he was still walking with a limp. ... I think there's a chance he can start on PUP.
Mentioned at 27:59 – 31:37Captured by STACKED 3 hr after posting

STACKED’s take

Negative signalInjury

Avoid due to severe ankle injury and potential PUP list start

Alec Pierce is ranked lower than consensus (WR41/WR47 vs WR33 ADP) due to a severe left ankle injury requiring multiple PRP injections; he is still walking with a limp and may start the season on the PUP list. Missing the entire preseason is expected to lead to underperformance, and the source is no longer drafting him at his current ADP, which is near high-variance receivers like Marvin Harrison Jr. and Brian Thomas Jr.

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