ORCHARD PARK, N.Y. (AP) - The Buffalo Bills may be without wide receiver Donald Jones, who is listed as questionable for Sunday's home game against Jacksonville (2-9) after missing significant practice time this week.

"Donald Jones has had some tightness in his calf,'' coach Chan Gailey said on Friday, "and we keep trying to get it out but we haven't been able to do that yet. So he didn't practice.''

Jones is second on the Bills (4-7) in receptions (38), yards receiving (410) and touchdown catches (4).

Gailey said Jones had missed parts of two practices before not participating at all on Friday. He said he's neither pessimistic nor optimistic about his receiver, but that missing practices wouldn't hurt Jones' mental preparation for Sunday.

Justin Rogers did more in practice after a foot injury limited him Thursday. The cornerback is questionable, as is defensive tackle Spencer Johnson. Johnson missed Thursday with an illness but was back on the field Friday.