Senzel agreed to a one-year, major-league contract with the White Sox on Tuesday, Jon Heyman of the New York Post reports.
Senzel spent most of the first half of the campaign with Washington, slashing .209/.303/.359 with seven home runs, 18 RBI, 25 runs and one stolen base before he was designated for assignment July 6 and later released. He played exclusively at third base with the Nationals but had previously spent the majority of his big-league time in the outfield.