ATLANTA (AP) — San Francisco Giants pitcher Hunter Strickland began serving a six-game suspension Monday for brawling with Bryce Harper after his appeal was denied by John McHale, Jr., a special assistant to baseball Commissioner Rob Manfred.

The penalty stemmed from a benches-clearing incident between the Giants and Washington Nationals on May 29.

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Strickland plunked Harper on the right hip with a 98 mph fastball, igniting an eighth-inning fight that ended with Strickland being dragged to the Giants dugout by several teammates.

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Harper was suspended for four games, which was reduced to three games after his appeal. He has already served the penalty.

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MLB denied Strickland’s appeal, which means he’ll miss all four games of the series against the Braves as well as the first two games of a weekend series in San Francisco against the New York Mets.