Dynamic duo: Arrieta, Greinke in race for ages

Arrieta earns MLB-best 21st win 2:30 9/27/15: Jake Arrieta takes a perfect game into the 7th, ending his day giving up just one hit while striking out nine to earn his 21st win No, it's entirely possible that both of those awards go to Jake Arrieta, whose sensational second half (he has a 0.44 ERA over the not-so-small sample that is his last 11 starts) has made those races arguably as entertaining as anything going on in the standings in this final week of the regular season. Arrieta might have fallen short for his second Sunday night no-hitter in four weeks, but another pulsating performance against the Pirates ensured that Greinke, who makes his 31st start of the season Monday night against the Giants, has his work cut out for him in his last two turns.

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