CHICAGO (AP) — It was breezy and chilly — but not nearly cold enough to contain Ke’Bryan Hayes.

The rookie slugger hit a two-run homer and Pittsburgh's relievers dominated in a two-hitter, helping the Pirates beat the Chicago Cubs 5-3 Thursday on opening day.

The gametime temperature at Wrigley Field was 36 degrees, and the flags at the iconic ballpark rippled in the breeze for much of the sunny afternoon. A crowd of 10,343 dressed in winter jackets, hooded sweatshirts and hats for the return of fans to Wrigley after they were kept out last summer because of the pandemic.

But the 24-year-old Hayes had more than enough power to leave the yard in the first inning, giving Pittsburgh a lift with a long two-run shot to left-center in front of his father, Charlie Hayes, a former big league infielder.

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