Premiership strugglers Watford have completed the signings of Rotherham duo Lee Williamson and Will Hoskins in a deal which could earn the Millers £1m.
Williamson and Hoskins have been in fine form in League One
Williamson, 24, and Hoksins, 20, have both signed three-and-a-half year contracts at Vicarage Road.
Striker Hoksins has already scored 16 times this season, while Williamson has made over 50 appearances for the club.
They will not play in the FA Cup third round tie with Stockport on Saturday but will watch from the stands.
Their first game for the Hornets is expected to be the Premiership game at home to Liverpool on Saturday 13 January.