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For some Watford players, there is no rest, with a quick turnaround after Saturday's draw against Middlesbrough to their respective international outings.
Of the nine players called up to represent their countries over the coming week or so, five will be in action on Thursday.
Maamma had been expected to feature for Morocco under-23s in their second U23 AFCON qualifying round first leg, but he is set to miss out due to flu.
Zimbabwe and Equatorial Guinea are level on points ahead of their AFCON qualifying double-header, though Zemura's side are ahead on goal difference, sitting second in Group E.
Zemura has been a regular feature for Watford this term, and will hope to keep that going for his nation during the international break.
After featuring in every game for Watford so far this season, Kayembe will hope to add to his 47 DR Congo caps, as his nation look to maintain their perfect start to AFCON qualifying.
Like many nations, DR Congo have a double-header in this international break, with their second game against Sierra Leone set to take place at a neutral venue in Morocco.
An ever-present for Watford, barring his recent suspension, Kyprianou is of similar importance to Cyprus.
Cyprus are second in their UEFA Nations League group, and a win over Armenia could take them top, depending on Montenegro's result at home to Latvia later in the evening.
Keben's Cameroon will look to build on their unbeaten start to their AFCON qualifying group.
Cameroon lead Group G, a point ahead of Thursday's opponents, Namibia, ahead of the two sides' double-header.