Blaine Gabbert is a sideline spectator again.
The Jacksonville Jaguars ruled out Gabbert for Sunday's game against the Raiders after he sliced open the back of his throwing hand in the season opener. Gabbert caught his right hand on a defender's facemask while scrambling for a 4-yard gain during the closing minutes against Kansas City on Sunday. He received 15 stitches to close the wound.
Chad Henne will start against the Raiders, and newly signed Ricky Stanzi will serve as the backup.
Gabbert won't be able to practice this week because of concerns that dirt and sweat could get in the wound and cause infection. The team is hopeful he will be able to play Sept. 22 at Seattle. If not, then he should return Sept. 29 against Indianapolis.
"It's got to heal and we need to keep it clean," coach Gus Bradley said. "The big concern would be with all the stitches that it could reopen and then the chance of infection occurs. So we're going to handle that right. Hopefully we get him back either next week or following the Seattle game."
Gabbert has missed eight of the team's last 11 games, including the final six last season.
NOTES: The Raiders came out of Sunday's game against the Colts mostly healthy, with the most notable injury being a sore shoulder for S Tyvon Branch that is not expected to keep him out of practice. ... Raiders coach Dennis Allen said he did not believe there was any issue on the hold by Marquette King on a missed 48-yard field goal by Sebastian Janikowski in Sunday's loss. ... Allen said he did not know whether LT Menelik Watson (knee) or TE David Ausberry (shoulder) would be back at practice Wednesday.