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"&lt;p&gt;&lt;/p&gt;&lt;p&gt; Washington Nationals slugger Bryce Harper was injured on this slide into third base. (AP Photo/Nick Wass)&lt;/p&gt;&lt;p&gt;Washington Nationals\u00A0left fielder\u00A0Bryce Harper\u00A0will have\u00A0surgery Tuesday to repair a torn ulnar collateral ligament in his left thumb and is expected to be out until at least early July, reports ESPN.com's Keith Law.&lt;/p&gt;&lt;p&gt;Harper, 21, was already on the 15-day disabled list because of the thumb injury.&lt;/p&gt;&lt;p&gt;Harper was injured when he slid head-first into third base after a bases-clearing triple in Friday night's victory over the San Diego Padres, but stayed in the game for an inning and then was replaced.&lt;/p&gt;&lt;p&gt;Los Angeles Angels\u00A0outfielder\u00A0Josh Hamilton\u00A0is out with the same injury stemming from a similar head-first slide into first base earlier this month.&lt;/p&gt;&lt;p&gt;The oft-injured Harper missed 44 games last season because of a left knee injury.&lt;/p&gt;&lt;p&gt;Harper is hitting .289 with one home run and nine RBI in 22 games this season.\n&lt;strong&gt;SI.com STAFF: MLB Power Rankings: Braves take over top spot, AL West pair rises&lt;/strong&gt;&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/si-wire/2014/04/28/nationals-bryce-harper-torn-thumb-ligament-out-until-july>