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GELSENKIRCHEN, Germany (Reuters) - Former world number two Tommy Haas made his comeback Tuesday after missing 14 months through injury when he competed in the doubles event at the Munich Open.

Haas, who has also taken on U.S. nationality, partnered close friend and Florida neighbor Czech Radek Stepanek but lost to Sweden's Simon Aspelin and Australian Paul Hanley 2-6 6-3 10-8.

He had last played on February 22, 2010 at the Delray Beach International event where as top seed he lost 7-6 7-5 to Russian Teimuraz Gabashvili in the first round.

(Writing by Karolos Grohmann, Editing by Mark Meadows)