I don't know if Saturday is a possibility, but we're thinking the Europa League game against Qarabag could be a good match for him.
Arsenal went back in front in the 68th minute, Lacazette being credited with the goal after Rojo's attempted tackle saw the ball ricochet past De Gea.
Aaron Ramsey also came off with an ankle injury at Old Trafford, but Emery said "it's smaller than Rob's" and that the Wales worldwide will also be assessed on Friday.
"But it's nearly a different Arsenal side now, they're playing better football, they're a more aggressive team and looking at them now they're one of the strongest teams in the league".
Rojo's passing from the left was useful and he hit a good free-kick to lead to United's first goal, but his error for Arsenal's second was terrible and he was perhaps lucky only to be booked for a challenge on Matteo Guendouzi.
Asked if Ramsey could stay at the Emirates beyond next summer, Emery replied: "This conversation is not for today for us or for me".
"It was disappointing and we paid the price for not starting how we should have started", he said of their performance against Southampton.
Ukraine launches drill near Russia's border
Russian Federation is still stopping vessels to inspect them, he said Tuesday in a statement on the ministry's website. According to CNN , the last USA ship to enter the Black Sea was the fast transport ship USNS Carson City in October.
Although Robert Huth received a retrospective three-match ban for grabbing Fellaini's hair in 2016, no action is to result against the Belgian as a foul was given for the incident. Just three days after thrashing North London rivals Tottenham Hotspur 4-2 at the Emirates, Arsenal came into the game at Old Trafford brimming with confidence.
"The best (response) is for the next match - cut the hair for Matteo and this problem is finished, like Fellaini", Emery said.
- Arsenal are now unbeaten in their last 20 games in all competitions, their longest such run since November 2007 (28 games). "I wasn't really 100 per cent fit", he said.
"I live (in the) present in every day, in every year".
"It was a good season for me on a personal level last season and an enjoyable summer and I wanted to kickstart this season in the same form", he said. On Saturday, they are going to push a lot and (will want) a surprise.
"But we have to be happy with the spirit".