The 41-year-old left-hander left with a lead in his last game, against Milwaukee, only to watch the Mets' bullpen blow it in the eighth.
He's trying to become the 23rd pitcher to reach the mark, the first since former Atlanta Braves teammate Greg Maddux in 2004.
Glavine is 14-and-13 against the Cubs, including six-and-five at Wrigley Field. He'll face another former Atlanta teammate in Jason Marquis (mar-KEE'), who'll start for Chicago.
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