Cardiff have completed deals for Manchester United's Wilfried Zaha and Fabio da Silva.
England winger Zaha joins on loan until the end of the season, and a permanent deal for full-back Fabio is also done.
Zaha is the most high profile of Ole Gunnar Solskjaer's seven January signings, and the Cardiff manager is expecting big things from a player who cost United a reported £15m 12 months ago.
The 21-year-old has found first-team chances difficult to come by since David Moyes's arrival and Solskjaer said: "He has pace, power, technical ability and goes past people. He will give us that extra change of tempo in the final third, where we really need it.
"He will bring that little final bit to find pockets of space and produce a bit of magic.
"I don't think he has something to prove, he wants to play. He played a few games at United, but maybe not what he hoped for when he went there.
"He wants to play, to play with confidence and keep Cardiff in the Premier League."
Twice-capped Brazilian Fabio, meanwhile, arrives for an undisclosed fee after six years at Old Trafford.
He said: "I know this is the right move for me. I spoke a lot to the manager about coming in and I know that I can help us move up the division."
Solskjaer also confirmed striker Andreas Cornelius, signed for £8million by Malky Mackay last summer, is in talks over a return to FC Copenhagen.
He said: "Andreas is speaking to Copenhagen, it is not 100 per cent done yet. We will confirm when it happens.
"He has had a hard time, he came here with big potential, he is a young kid and young kids are not the ones you expect to carry a team. He is a young man who will play a lot of good football in his career."
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