Just when Eagles wide receiver DeSean Jackson started to prove his worth, he got injured.

The foot bruise Jackson suffered in Sunday night's win over the New York Giants wasn't serious, coach Andy Reid said, but it bears watching with the New England Patriots and another must-win game looming Sunday.

"It's sore today," Reid said Monday. "But it's not a Lisfranc [sprain] or one of those things. It got stepped on. It's tender. He came in early this morning and got treatment, so we'll see how he does."

With receiver Jeremy Maclin still questionable because of shoulder and hamstring injuries, Jackson has become even more valuable than usual. He showed it against the Giants with six catches for 88 yards and a 51-yard punt return that set up the Eagles' first touchdown.

Jackson was benched on Nov. 13 because he was late for a meeting. He acknowledged the day after the loss to Arizona that his contract situation - he wants an extension - has not made him the happiest of campers.

"This whole week he was quite focused," Eagles offensive coordinator Marty Mornhinweg said.

With Jackson, the Eagles sometimes have to take the bad with the good. On Sunday night, after he caught a 50-yard pass near the New York sideline, he flipped the football into the stomach of Giants defensive coordinator Perry Fewell.

The indiscretion drew a personal foul.

"DeSean gets juiced up now," Mornhinweg said. "However, he's got to be above that."

Reid also said that he wasn't happy with Jackson's taunt, but he was pleased with his attitude.

Others weren't as kind.

Jacksonville Jaguars kicker Josh Scobee, for instance, called Jackson a "punk" on Twitter. In another tweet, Scobee wrote: "Relax people. He's just a punk, which to me means he doesn't respect anyone or anything around him. Therefore, I don't respect him."

Scobee later apologized.

Explaining the penalty

Jackson's penalty nullified the 50-yard completion even though it was a dead-ball foul. Because Giants defensive tackle Linval Joseph was called for illegal use of the hands on the play, the officials ruled that the penalties were offsetting and the down was replayed.

Many, including Reid, believed that the Eagles should have been allowed to decline the Giants penalty and that Jackson's personal foul for taunting should have been assessed after the gain.

"It doesn't make sense," Reid said.

While that may be true, the officials were following the rulebook, which says, "If there is a double foul without a change of possession, the penalties are offset and the down is replayed at the previous spot."

Amazingly, if the Giants' penalty had been for 5 yards, the Eagles' 15-yard penalty would have been "assessed from the previous spot," according to the rulebook.

Reid, who is on the competition committee, was asked whether the rule needed to be changed.

"I'm going do some more research on it now that it's over," Reid said. "I didn't understand it when I was out there. They explained it to me well. It's one of those that you kind of raise your eyebrow to."

McCoy's day

After his 113-yard rushing performance against the Giants, LeSean McCoy is back to leading the NFL with 1,019 yards on the ground. He is on pace to finish with 1,630 yards.

McCoy became the first Eagle to eclipse 1,000 yards in 10 games and joined Wilbert Montgomery, Ricky Watters, Duce Staley, and Brian Westbrook as the only running backs in franchise history to have back-to-back 1,000-yard seasons.

"It's hard to enjoy individual-type stats and accomplishments when you're not winning," McCoy said Sunday.

Injury report

Reid said he didn't expect cornerback Dominique Rodgers-Cromartie, who missed Sunday's game because of a high ankle sprain, to return in time to face the Patriots. Joselio Hanson filled in for Rodgers-Cromartie at the nickel. . . . Defensive end Brandon Graham was not active against the Giants because of knee swelling, Reid said. He also has a bruised rib. Graham is coming off December knee surgery. . . . Offensive lineman King Dunlap did not pass baseline concussion testing last week and will be tested again this week.

Contact staff writer Jeff McLane at 215-854-4745, jmclane@phillynews.com, or @Jeff_McLane on Twitter.