Both players were injured in Sunday's 17-10 win over the Jaguars and are day-to-day. Hill's diagnosis is more favorable than a ligament tear, but it's unclear how much time he'll miss.
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Edwards was released by Seattle Dec. 4 with a waived / injured designation. On Monday the Seahawks waived Edwards from injured reserve, opening the door for the Jets.
Edwards made news last week when he came to Mark Sanchez's defense by calling members of the Jets' front office "idiots" on Twitter. He apologized for his "emotional outburst" but was cut by the Seahawks that same day.
Since leaving the Jets after the 2010 season, he has 23 receptions for 255 yards and one touchdown in 19 games with the 49ers and Seahawks.
The Jets signed linebacker Joseph "JoJo" Dickson and receiver Titus Ryan to the practice squad and released defensive lineman Matt Hardison and receiver Eddie McGee . . . The Jets' Dec. 23 home game against the Chargers was flexed to 1 p.m. Kickoff previously was scheduled for 8:20 p.m. . . . Cornerback Aaron Berry injured his hamstring Sunday.