Late summer signings Victor Ibarbo and Obbi Oulare will not debut for Watford this weekend.
The Hornets host Swansea City on Saturday but will be without their two latest strike additions for various reasons.
Colombian striker Ibarbo, who joined on loan from Cagliari, is yet to obtain his UK working visa while Belgian youngster Oulare, who arrived from Club Brugge, is still a little underdone according to manager Quique Flores.
"Ibarbo is solving a problem with his visa," said Flores.
"He is not here, he was training in the first days but he is not here.
"Oulare, he is not at his best physically at the moment so we have to think a little bit more about him."