<p>ARLINGTON, Texas — Texas right-hander Kohei Arihara needs shoulder surgery and is expected to miss at least 12 weeks.</p>
<p>Rangers general manager Chris Young said Saturday that Arihara has an aneurysm in his pitching shoulder. Dr. Gregory Pearl, a vascular surgeon, is to repair the posterior circumflex humeral artery on Thursday in Dallas.</p>
<p>“Dr. Pearl is one of the two best in the country for this procedure,” Young said, “so we’re very confident he will have a full recovery.”</p>
<p>Arihara has been on the 10-day injured list since May 9. and left-hander Hyeon-Jong Yang has taken his place in the Texas rotation. Arihara threw a bullpen on May 17 but felt discomfort in the middle finger of his right hand.</p>
<p> The diagnosis was made after an examination this week.</p>
<p>Texas signed Arihara to a $6.2 million, two-year contract as a free agent after six seasons with the Hokkaido Nippon Ham Fighters of Japan’s Pacific League. He is 2-3 with a 6.59 ERA in seven starts for the Rangers.</p>
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