LONDON (REUTERS) - West Ham United manager Manuel Pellegrini has continued his overhaul of the squad by signing Ukraine forward Andriy Yarmolenko on a four-year contract from German Bundesliga side Borussia Dortmund, the Premier League club announced on Wednesday (July 11).

Yarmolenko's arrival follows that of midfielder Jack Wilshere, goalkeeper Lukasz Fabianski, and defenders Issa Diop and Ryan Fredericks as new coach Pellegrini looks to improve upon a disappointing 13th-placed finish last season.

"We are very happy to welcome Andriy," West Ham director of football Mario Husillos said on the club's website. (www.whufc.com)

"When we had the opportunity to sign him, we did not hesitate, because he really is the kind of player that we were looking for."

The east London side did not disclose the fee for the 28-year-old, although British media reports said it was around £17.5 million pounds (S$27.9 million).

The 28-year-old enjoyed a stellar spell at Ukraine's Dynamo Kiev where he scored 137 goals in all competitions since his making his senior debut in May 2008 and he is the second highest goalscorer for the Ukrainian national team after retired great Andriy Shevchenko.

West Ham begin the new league campaign with a difficult away trip to Liverpool on Aug 12.