Tozser made 46 appearances last season and scored five times for the Hornets.
Angella, on the other hand, has been with the club since 2013 and has made 75 appearances for the club, but has failed to make any appearance this season.
The R's are keen to bring the pair to Loftus Road and according to West London Sport, Tozser will have a medical on Friday before the club attempts to lure Angella from Vicarage Road before the close of the transfer window next week.
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