(Photo by Carl Recine/Getty Images)Mikel Arteta has shared an update on the injuries to William Saliba and Jurrien Timber, and it is not good news for Arsenal ahead of the start of the new Premier League season. Arteta provides William Saliba and Jurrien Timber injury updateArsenal will be forced to kick off their domestic campaign without half of their first-choice back four after Arteta delivered a concerning update on the duo’s recovery timelines. “Jurrien is progressing really well, he’s on the pitch, he’s doing quite a lot right now, but is still weeks away. Updating on Saliba’s setback, Arteta explained: “William is in rest mode at the moment. Regardless of the target, Arteta may be forced to act swiftly to ensure sufficient depth across his back four.