MLB

Live: Cubs' Arrieta perfect through six innings vs. Pirates

Sep 27, 2015; Chicago, IL, USA; Chicago Cubs starting pitcher Jake Arrieta (49) delivers a pitch during the first inning against the Pittsburgh Pirates at Wrigley Field. Mandatory Credit: Dennis Wierzbicki-USA TODAY Sports

Sep 27, 2015; Chicago, IL, USA; Chicago Cubs starting pitcher Jake Arrieta (49) delivers a pitch during the first inning against the Pittsburgh Pirates at Wrigley Field. Mandatory Credit: Dennis Wierzbicki-USA TODAY Sports

Live: Cubs' Arrieta working on perfect game vs. Pirates

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