Barcelona have announced the signing of Robert Lewandowski from Bayern Munich, becoming the LaLiga club's fifth arrival this summer.

Bayern president Herbert Hainer confirmed on Saturday the clubs had reached a verbal agreement for the transfer of the 33-year-old striker, but the move has now been completed.

Lewandowski will sign a four-year contract with a release clause set at €500 million, Barcelona said in a statement. He had 12 months remaining on his Bayern contract and moved to Barcelona for €45m with a possible €5m in add-ons, the 26-time Spanish champions confirmed.

The Poland international joined up with his new teammates on Barca's preseason tour of the United States on Monday ahead of their friendly against Major League Soccer side Inter Miami on Tuesday night.