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"&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;em&gt;Get breaking news and SI\u2019s biggest stories instantly. Download the new Sports Illustrated app (iOS&amp;nbsp;or Android) and personalize your experience by following your favorite teams and SI writers.&lt;/em&gt;\r\n\r\n&lt;/p&gt;&lt;p&gt;Chiefs outside linebacker Justin Houston had surgery to repair his ACL last month, the team announced Tuesday.\r\n\r\n&lt;/p&gt;&lt;p&gt;Kansas City trainer Rick Burkholder said an arthroscopic procedure showed the ligament was intact but \u201Cnot functioning,\u201D according to the&amp;nbsp;&lt;em&gt;Kansas City Star.&lt;/em&gt;&amp;nbsp;His expected recovery time is six to 12 months, which would keep him out at least until August and potentially for the entire 2016 season.&amp;nbsp;\r\n\r\n&lt;/p&gt;&lt;p&gt;\u2022 &lt;strong&gt;Ravens have unofficial agreement with RB Trent Richardson&lt;/strong&gt;\r\n\r\n&lt;/p&gt;&lt;p&gt;After leading the NFL with 22 sacks in 2014, Houston recorded 7.5 sacks in 11 games last season. He hyperextended his knee in the Chiefs\u2019 Week 12 game and did not return to the field until the first round of the playoffs.&amp;nbsp;\r\n\r\n&lt;/p&gt;&lt;p&gt;Earlier this month, the Chiefs re-signed veteran outside linebacker Tamba&amp;nbsp;Hali to a three-year contract reportedly worth up to $22 million.&amp;nbsp;\r\n&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2016/03/22/justin-houston-injury-chiefs-acl-surgery-update>