Chris Coleman says Wales will heed any Arsenal advice over the fitness of Aaron Ramsey.
The midfielder made his first start since the opening day of the season when playing 75 minutes of Arsenal's 3-2 Champions League victory over Ludogorets on Tuesday.
Ramsey is expected to play some part in the north London derby against Tottenham on Sunday ahead of Wales' crunch World Cup qualifier with Serbia next weekend.
The 25-year-old has missed the opening three World Cup qualifiers because of a hamstring problem and Wales are desperate for Ramsey to return to international duty.