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The Cubs beat the White Sox in walk-off fashion even the two-game series at Wrigley Field. Christopher Morel belted a three-run home run to secure the 4-3 win.
Earlier in the year, the Cubs swept the two games at Guaranteed Rate Field. So, the fight for the Crosstown Cup ends in a 3-1 Cubs victory.
White Sox starter Mike Clevinger threw seven scoreless innings against the Cubs, limiting them to three hits.
Cubs starter Javier Assad retired the first 10 batters he faced in order. But then he gave up back-to-back singles to Andrew Benintendi and Luis Robert Jr.