Andre Wisdom has become West Brom's sixth signing of the summer courtesy of Liverpool boss Brendan Rodgers singing the defender's praises.
England Under-21 international Wisdom has joined new head coach Alan Irvine's side on a season-long loan from Anfield.
Wisdom scored on his Liverpool debut in a 5-3 Europa League win over Swiss side Young Boys in September 2012, before going on to make a further 18 appearances that season.
Following three appearances for the Reds at the start of last season, the 21-year-old then joined Derby on loan for the season, starting 38 games, including the Sky Bet Championship play-off final defeat to QPR.
"I've spoken to Brendan, who I've known for a very long time and who I trust implicitly," said Irvine.
"He said Andre would do a good job for us. That was reassuring.
"You can see the player, but you want to find out what they are like as a person. Brendan spoke very, very highly about him."