Watford completed three more signings late on deadline day to take the number of transfer window acquisitions made by the Premiership strugglers up to eight.
Hornets boss Aidy Boothroyd completed deals to bring Johan Cavalli, Douglas Rinaldi and Cedric Avinel to Vicarage Road late on Wednesday.
The trio join Gareth Williams, Moses Ashikodi, Lee Williamson, Will Hoskins and Steven Kabba, who all moved to the Premiership's bottom club earlier in the transfer window.
Cavalli joined the Hornets from French second division club Istres on a free transfer.
The 25-year-old midfielder put pen to paper on an 18-month contract.
Central defender Avinel arrived on an 18-month contract from French side Creteil.
Midfielder Rinaldi was also signed on a season long loan deal from Brazilian side Veranopolis.
Meanwhile, Boothroyd had no complaints after his side were beaten 4-0 at Manchester United on Wednesday evening.
"I'm not going to sit here and criticise my players. For them to be here at this place is a credit if you consider where they have come from," he said.
"Manchester United are a world-class team with world-class players and you have to bear in mind that the turnover of our club is four per cent of theirs.
"We came here with a game plan to destroy, frustrate and stop them playing in the first half, but it did not go according to plan.
"As soon as we got the ball, we couldn't keep hold of it. I was not daft enough to attack and maybe lose 10-3.
"Beating United at Old Trafford will not keep us in the Premiership. Winning our home games and nicking the odd point away will do that."