Middlesbrough have signed former Werder Bremen forward Lee Dong-Gook from Pohang Steelers after the 27-year-old South Korean was granted a work permit.
Lee celebrates one of his 22 international goals
Lee has not played the required 75% of competitive internationals for his country in the last year but had been injured for the majority he missed.
Boro coach Colin Cooper told BBC Radio Cleveland: "We've tested him physically and tactically.
"He's missed a lot of football, and he seems keen and very hungry to play."
The striker, who has scored 22 goals in 64 appearances for South Korea, has signed an 18-month contract with Boro.
Highly-rated Lee missed out on the chance to put himself in the shop window at the 2006 World Cup after injuring knee ligaments in April.
And the 2002 semi-finalists missed his predatory eye for goal in Germany when they crashed out at the group stage.