Wigan have made Bolivia striker Marcelo Moreno their second signing on transfer deadline day.
The 22-year-old has joined on loan from Shakhtar Donetsk until the end of the season, subject to visa and international clearance.
His arrival follows the earlier deal for 19-year-old forward Victor Moses who joined from Crystal Palace for a fee of around £2.5m.
Wigan manager Roberto Martinez said: "We knew we needed more competition in the forward area, and now we have Victor Moses and Marcelo Moreno.
Moreno moved to Shakhtar from Brazilian side Cruzeiro in May 2008 but struggled to make an impact, and also failed to impress during a loan spell with German giants Werder Bremen.
Wigan boss Martinez is optimistic his new recruit's form will change for the better in the Barclays Premier League.
Martinez told Wigan's official website: "Shakhtar paid nine million euros for him 18 months ago, which shows you how highly he is regarded, and he has all the ingredients to become a big player in this country.
"He still needs to find his feet in Europe, and we are confident that this will be at Wigan.
"Let's see what happens over the next few months but he certainly fits the bill for what we are looking for at Wigan Athletic.
"He is young, a superb athlete, good in the air, technically good with both feet and he will add something new to the squad.
"Hopefully he can adapt quickly to the demands of the Premier League and become a real quality addition to the Wigan Athletic squad."
As he prepares to play for his third European club, Moreno said: "Roberto Martinez sold the club to me, and I am determined to come to England and make an impression.
"I want to do everything I can to get in the team now and I'm looking forward to meeting all my new team-mates and fighting for my place."
Martinez earlier claimed the arrival of Moses represents a key moment in Wigan's planning for the future.
The teenager signed a three-and-a-half-year contract at the DW Stadium, after Wigan fended off rival bidders.
Wigan stand 14th in the top flight and are just two points above the relegation zone, but Martinez suggested the deal offers a clear indication of how the Latics intend to move forward.
He said: "It shows that we have a short-term aim to stay in the Premier League but a future plan as well.
"He is one of the most talented young footballers that we have got in the British game, so to be able to work with him and have a player that relies on his talent to be effective on the football pitch is very exciting news for Wigan.
"Those players don't appear too often. For us to be able to invest on Victor, I think it is clear, the determination of where we want to be as a football club."
Moses said: "I need to prove myself now at Wigan and I'm going to focus on getting in the team and doing well for my new club."
Wigan take on Notts County in an FA Cup fourth-round replay tomorrow but Moses will have to wait for his debut as he is cup-tied, having already played for Palace in the competition this season, while Moreno is also ineligible.
Martinez is wary of the threat posed by League Two side County, who almost pulled off a giant-killing in the initial match at Meadow Lane after going in at half-time 2-0 up.
Wigan fought back after the break and Martinez is expecting another feisty cup tie at the DW Stadium tomorrow night.
He said: "It's a unique opportunity for both football clubs to get into the fifth round and it's going to be a typical FA Cup encounter."