Guy Lacombe admits Al Wasl may be forced to delve back into the transfer market before the window closes next week.
Wasl's defeat to Nasr extended their worrying sequence of results to two victories from 10 league matches, and there are fresh concerns surrounding the fitness of Shikabala, the influential Egyptian.
Shikabala missed Saturday's game through injury, and fears are growing he may not feature again this campaign.
Wasl have already lost Mariano Donda for the season, replacing the Argentine with Achille Emana on a six-month loan deal from Al Ahli.
"There is the possibility to change Shikabala," Lacombe said. "It is not 100 per cent, but maybe.
"If Shikabala was playing [against Nasr] the result would have been different."