round of the 2010 Australian Open, defeating Simon Greul and Janko Tipsarević, but did not play after February 2010, spending time recovering from right hip and right shoulder surgeries. He missed the rest of the 2010 season and once more dropped out of the ATP rankings. He returned to action partnering Radek Štěpánek in doubles in Munich in May 2011, but then lost in the first round. His return match in singles came at the 2011 French Open, where he lost in round one. He also went down in the first round at Wimbledon, but reached the third round of the US Open, losing to Juan Mónaco in four sets. Other than Grand Slams, he played little tennis, competing in only ten other tournaments, mainly in July, August, and October. 2012: 13th title, second ATP Comeback Player of the Year award Haas began the 2012 season at the Brisbane International, but had to withdraw in the second round. Nevertheless, he competed more regularly in 2012 than in previous seasons. He qualified for the French Open, progressing to the third round, and reached the semifinals of the BMW Open, returning to the world's top 100. As a wildcard at the Gerry Weber Open in Germany, Haas won the title for the second time thanks to wins over former champions Tomáš Berdych and Philipp Kohlschreiber en route to the final, where he defeated world No. 3 and five-time champion Federer in two sets. However, Haas was subsequently defeated in the first round of Wimbledon later that month, letting a two-sets-to-one lead slip against compatriot Philipp Kohlschreiber. Haas lost to world No. 206, Pavol Červenák in the Stuttgart clay-court tournament at the second-round stage. Haas continued to find good form during the second half of the season. He reached the finals of the German Open Tennis Championships 2012, losing to Juan Mónaco, and the Citi Open, losing to Alexandr Dolgopolov. These two runs saw Haas rise back into the top 50. Haas went on to reach two quarterfinals in Masters 1000 tournaments, his best performance at that level since 2008. Haas briefly returned to the top 20 in the world in October 2012, and he finished the season ranked No. 21. This was enough to earn him the Comeback Player of the Year award for a second time. 2013: French Open quarterfinal, victory over No.1, comeback to No.11 Haas lost in the Australian