Buffalo's Doug Marrone is starting his first season as an NFL head coach.
AP

PITTSFORD, N.Y. (AP) -- Buffalo Bills coach Doug Marrone has grown frustrated answering questions regarding defensive end Mario Williams' continued absence from practice due to a sore foot.

After saying Williams was having his foot evaluated for a second consecutive day, Marrone announced Tuesday he would no longer answer questions about the player until he receives a medical report from team doctors.

Marrone provided no other update on the injury. Williams has missed the Bills' first three days of training camp after complaining of a sore foot before the team's opening practice Sunday night.

The first-year coach refuses to speculate on the severity of the injury or how much time Williams might miss. Marrone added, he's not spoken to anyone, including Williams, regarding the player's status.

Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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