West Brom have strengthened their defence after completing the signings of international duo Cristian Gamboa and Jason Davidson.
Gamboa, who played all five matches for Costa Rica at the World Cup, joins for an undisclosed fee from Norwegian side Rosenborg, with the versatile right-sided defender penning a three-year deal.
The signing was completed after an English Football Association appeal panel approved the 24-year-old's work permit application.
Baggies head coach Alan Irvine said: "As I commented the other day, it would have been amazing if Cristian had not been granted a work permit and we're obviously satisfied with today's outcome.
"Cristian is a player I was extremely impressed by during the World Cup.
"We faced stiff competition from other Premier League clubs for his services but we've managed to convince Cristian that West Bromwich Albion is the best club for him to join.
"Cristian is a quick, aggressive defender with good energy levels. He gets up and down the pitch really well and we believe he will continue to improve."
Davidson's signing had been announced minutes earlier after a contract dispute with his former club Heracles Almelo was resolved.
Davidson, who also played in Brazil for Australia this summer, believed he had finished his contract with Heracles and had become a free agent.
Heracles, however, informed Davidson they had triggered a one-year option on that deal and he remained their player.
To get the deal over the line, Albion have paid an undisclosed fee for the 23-year-old left-back, who has signed a two-year contract, with an option in the club's favour for a further season.
Speaking to the club's website, Irvine said: "Due to contractual issues with his former club there's been a delay in Jason coming.
"This means he hasn't trained properly since the World Cup, so he's going to need a little bit of time to catch up before we can expect him to perform at the levels he's capable of.
"But he is a good defender who has lots of energy, gets forward well and will give us competition for places at left-back with Sebastien Pocognoli."
Irvine has confirmed speaking to former Everton star Tim Cahill, now with New York Red Bulls, for an appraisal on Davidson.
The Baggies coach added: "He recommended him very, very highly both as a player and character.
"Tim sees him as a young player who will do extremely well in England and develop even further."
Alongside Pocognoli, Gamboa and Davidson join fellow new faces Craig Gardner, Joleon Lescott, Chris Baird, Brown Ideye and Andre Wisdom at The Hawthorns.