Unai Emery is worried about the fitness of five players ahead of Newcastle United's visit to the Emirates Stadium.
Newcastle take on Emery's fourth-placed side on Monday night in a televised game.
Ramsey had to withdraw from Wales' squad with a thigh problem, while Bosnia's Sead Kolasinac and Greece's Sokratis Papastathopoulos had injury concerns over the international break.
Switzerland's Granit Xhaka had to be taken off against Denmark this week with an abductor problem.
Nacho Monreal stayed behind for treatment on a calf problem when his team-mates went to Dubai for a training camp friendly during the break.
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Newcastle boss Rafa Benitez hopes to welcome captain Jamaal Lascelles back from injury.
This article was most recently revised and updated 4 years ago
