MLB: Chicago Cubs 4, Pittsburgh 2

Sept. 25, 2013 at 5:51 PM

CHICAGO, Sept. 25 (UPI) -- Darnell McDonald went 3-for-4 with a go-ahead, three-run homer Wednesday and the Chicago Cubs dimmed Pittsburgh's division title hopes with a 4-2 win.

The score was tied 1-1 in the sixth when Donnie Murphy led off with a single against Pirates starter Francisco Liriano and Junior Lake followed with a walk -- bringing up McDonald, who belted a pitch into the left-field bleachers for a three-run shot.

Jake Arrieta (4-2) yielded one run on four hits over six innings, walking two and striking out one to collect the victory.

Kevin Gregg recorded his 33rd save despite allowing a run in the ninth for Chicago, which avoided a three-game sweep.

Liriano (16-8) absorbed the loss, surrendering four runs on eight hits over five innings. The Pirates -- who have already clinched a post-season berth -- fell three games behind National League Central-leading St. Louis with four games remaining.

Justin Morneau and Jose Tabata each provided an RBI for the Bucs.

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