Cubs win 4th straight after Lester 1-hits Bucs

Rizzo's sacrifice fly to right CHICAGO -- Jon Lester is in a groove.

The left-hander gave up one hit over seven shutout innings on Saturday to lead the Cubs to a 2-0 victory over the Pirates at Wrigley Field. The outing follows the seven shutout innings he threw against the Mets on June 3, when he gave up two hits.

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With the win, the Cubs improved to 15-6 since May 18, and their starting pitchers are 10-5 in that stretch.

The only hit off Lester was a triple by Austin Meadows into the right-field corner with two outs in the third; he then retired the next 13. Lester is now 6-2 in his last 10 starts and has given up 12 earned runs over 62 2/3 innings, for a 1.72 ERA. The…