Reid moved quickly to snuff out any talk about replacing Vick, which has become a weekly ritual.
"Michael Vick will be the quarterback," the Eagles coach said.
Celek had a tough night. He also lost a fumble deep at the New Orleans 8 with just over 3 minutes remaining, essentially ending any hope of a Philadelphia comeback.
The Saints raced to a 21-3 halftime lead, putting the Eagles in a big hole for the second straight game. Over the last two weeks, they have been outscored 45-10 in the first and second quarters.
New Orleans was on the verge of blowing it open when it took the second-half kickoff and drove deep into Philadelphia territory. But the Eagles defense came up with a big turnover, as Brandon Graham stripped the ball from Brees and fell on it at the Eagles 17. Two plays later, Vick found Jackson wide open down the right side on a deep throw, and he took it the rest of the way for a touchdown.
Rookie Travaris Cadet, filling in on returns for the injured Darren Sproles, fumbled the ensuing kickoff and Philadelphia recovered again. Vick broke off a 14-yard run to the 8, but yet another sack stifled the drive. The Eagles settled for Henery's second field goal from 37 yards.
Henery connected from 22 yards early in the second quarter after the Eagles squandered a chance for more. Jackson appeared caught off guard by Vick's third-down pass in the back of the end zone, doing little more than sticking out his left hand in a halfhearted attempt to make the catch.
Philadelphia moved the ball effectively in the early going and looked to strike first after Brown broke off a 40-yard run to the New Orleans 5. After losing 1 yard on a run, the Eagles went to the air looking for the touchdown.
Instead, it was the Saints who scored. Vick's pass in the flats deflected off Celek's hands — right into the arms of Robinson, the right cornerback. He took off down the sideline in front of the shell-shocked Philadelphia bench, matching Darren Sharper's franchise record for longest interception return.
Notes: Graham, who has battled an ankle injury and had a problem with drops, led the Saints with a season-high eight catches for 72 yards. ... Jackson finished with 100 yards receiving on just three catches. ... Philadelphia's LeSean McCoy had 19 carries for 119 yards, but only 18 yards came after halftime.
Follow Paul Newberry on Twitter at www.twitter.com/pnewberry1963
Online: http://pro32.ap.org/poll and http://twitter.com/AP_NFL