* Haas played only doubles in the tournament
* German has won 12 singles titles in his career
(updates with quotes)
Former world number two Tommy Haas made his comeback on Tuesday after missing 14 months through injury when he competed in the doubles event at the Munich Open.
The 33-year-old German, who had reached his career-high ranking in May 2002 and played in four grand slam semi-finals, has won 12 singles titles but has been plagued by injuries for much of his career.
Haas, who has also taken on U.S. nationality, partnered close friend and Florida neighbour Czech Radek Stepanek but lost to Sweden's Simon Aspelin and Australian Paul Hanley 2-6 6-3 10-8.
"I would have also liked to play in the singles but I have not reached that point yet," Haas told reporters. "It was good experience but we came up a bit short."
He had last played on Feb. 22, 2010 at the Delray Beach International, following which he underwent hip and elbow surgery.