Hamburger SV has signed Latvia striker Artjoms Rudnevs from Polish side Lech Poznan.

The Bundesliga side says the 24-year-old Rudnevs signed a four-year deal, having impressed in the Polish first division with 33 goals in 56 appearances for Poznan.

The dapd news agency says Hamburg will pay around ?3.5 million ($4.53 million) for Rudnevs.

His signing comes after the Hamburg board agreed to sign former Germany goalkeeper Rene Adler, who lost his place at Bayer Leverkusen after undergoing knee surgery.

The 27-year-old Adler arrives on a free transfer and is expected to sign a deal to keep him in Hamburg until June 2017.