Philadelphia Union have acquired Kai Herdling on loan from German club Hoffenheim.

The 27-year old forward has joined the Union until June 30, following the injury to attacking midfielder Roger Torres, and Hoffenhem reserve team coach Frank Kramer admits the player will be a big loss for the remainder of the German season.

"Kai will be missed heavily, especially as a leader," Kramer said on the club's official website.

"But we also respect his wish and want him given a chance without putting obstacles in his way."

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