CHICAGO -- Welington Castillo hit a tiebreaking two-run single in Chicago's four-run eighth, helping the White Sox beat the Texas Rangers 4-2 on Thursday night in the opener of a four-game series between two of the worst teams in the AL.Yoan Moncada sparked the winning rally with a ground-rule double after Jose Leclerc (1-1) retired the first two batters of the inning.