Seattle, WA -- (Sports Network) - Seattle Mariners first baseman Richie Sexson had his suspension reduced from six games to five after an appeal.

He will begin serving his suspension immediately and will be available to return when the Mariners begin a three-game series against San Diego on Friday.

The suspension was in response to his violent and aggressive actions in the fourth inning of Thursday's game against the Texas Rangers at Safeco Field.

With two outs in the inning, Rangers pitcher Kason Gabbard came up and in with a fastball that caused Sexson to charge the mound and throw his helmet at the Texas hurler. Both benches cleared, but no punches were thrown.

Seattle starter Felix Hernandez had drilled Ian Kinsler, who homered off him earlier, with a fastball in the previous frame.