Holloway adds Swedish forward to his ranksMillwall have signed Watford striker Mathias Ranegie on loan until January.
The Swedish forward, 30, has been at Vicarage Road since the start of 2014 and has hit four goals in 10 appearances for The Hornets.
Ranegie, who has five caps for his national side, moved to England from Italian club Udinese, for whom the striker featured 30 times.
A proven scorer in his homeland, the giant 6'5" striker featured for Goteborg, BK Hacken and Malmo FF before moving to Italy.
Ranegie is expected to train with his new team-mates for the first time on Friday ahead of Saturday's home game against Blackpool.
Meanwhile, Millwall forward John Marquis has joined Cheltenham Town in a one-month loan switch.