Aaron Ramsey also had to come off at half-time with an ankle problem, but Emery said that only appears to be a "small injury".
Manchester United star Anthony Martial's incredible form this season continued after he grabbed an important goal in the club's 2-2 draw with Arsenal. Some of them had not played all season, Chris Smalling playing in very hard condition, but Arsenal were only risky when we lost the ball in bad areas.
"It looks like Ozil is going to be on the move in January and we are seeing one-way traffic for Manchester United to capture the out of favour midfielder from Arsenal." .
Arsenal took the lead in the 26th minute when United goalkeeper David De Gea mishandled Shkodran Mustafi's header off Lucas Torreira's cross, which dropped behind De Gea and out of reach of Ander Herrera's attempt to clear.
The Frenchman started the match on the bench once again, but replaced Alex Iwobi in the 65 minute with the scores tied and made an immediate impact as Arsenal re-took the lead just three minutes later.
Both second-half goals came in a insane minute, in which Rojo turned the ball off Alexandre Lacazette and into the United net in his attempts to make a last-ditch tackle.
He added: "I think that it was not the result that we wanted before the game".
He said: "I am very proud for our work and how we responded in the 90 minutes". I think this is our spirit.
"Jose is a fantastic man, he was the first to send me a message to say, "Welcome back", Ranieri said in his Press conference today.
"There's a long way to go in the season".
"The only thing is about Huddersfield, the games happen very quickly for the players, for me, for us".
He includes himself in that, with the Italian telling ESPN FC after being handed just a third outing of the season against Arsenal on Wednesday: "Between us, [there are] no problems - between the manager and the players". Usually United create a lot of chances here, and I don't think we conceded a lot of chances.
"He's working with us every day in training and playing in the under-23s with good feeling. I don't know if Saturday [against Huddersfield] is a possibility, but we're thinking the Europa League game against Qarabag could be a good match for him".