Roberto Firmino will miss Liverpool’s match against Arsenal with a hamstring injury, according to quotes from Jurgen Klopp.

Roberto Firmino came on as a half-time substitute for Liverpool against Atletico Madrid on Wednesday, but he only lasted 33 minutes before he was forced off again with injury.

Speaking in his pre-weekend press conference, Jurgen Klopp confirmed the striker has a hamstring injury, and it’s serious enough to keep him out for at least a few weeks.

“Bobby is not good news with a serious hamstring injury, really unfortunate,” Klopp said. “We don’t know exactly how long he will be out but it will be not now after the international break directly. We have to work on that.”

Considering Arsenal play Liverpool immediately after the break, that rules Firmino out of the match. You’d have to say that’s a boost for the Gunners, given Firmino’s eight goals in the fixture, though he has none in the last five between the two teams.

Klopp is hoping to have Naby Keita and James Milner back after the international break, in time for the Arsenal game, but he’s not sure on those two yet.

“We will see,” Klopp added. “For them, I have hope for after the international break but I don’t know exactly. We have to wait. That’s two weeks and a few days from now on, so that’s what I would really wish for but I cannot promise that.”

As for the others, it’s pretty much all good news for Liverpool (and bad for Arsenal). Joe Gomez, Curtis Jones, Fabinho, and Thiago Alcantara are all expected to be fit for Arsenal’s visit to Anfield.