In an effort to return Major League Baseball to Milwaukee after the departure of the Braves, local businessman and minority Braves owner Bud Selig brought other teams to play at County Stadium, beginning with a 1967 exhibition game between the Chicago White Sox and Minnesota Twins. The exhibition game attracted more than 51,000 spectators, so Selig's group contracted with Sox owner Arthur Allyn to host nine Chicago White Sox home games at County Stadium in 1968.

Selig's experiment was staggeringly successful - those nine games drew 264,297 fans. In Chicago that season, the Sox drew 539,478 fans to their remaining 58 home games. In just a handful of games, the Milwaukee crowds accounted for nearly one-third of the total attendance at White Sox games. In light of this success, Selig and Allyn agreed that County Stadium would host Sox home games again the next season.

In 1969, the Sox schedule in Milwaukee was expanded to include 11 home games (one against every other franchise in the American League at the time). Although those games were attended by slightly fewer fans (198,211 fans, for an average of 18,019) they represented a greater percentage of the total White Sox attendance than the previous year - over one-third of the fans who went to Sox home games in 1969 did so at County Stadium (in the remaining 59 home dates in Chicago, the Sox drew 391,335 for an average of 6,632 per game).

Selig was unable to gain a major league franchise for Milwaukee through expansion, so he purchased the Pale Hose from Allyn with the intention of moving them north to County Stadium. But unwilling to concede Chicago to the National League, the American League vetoed the sale. Not discouraged, Selig instead bought the struggling Seattle Pilots instead. In the spring of 1970 Milwaukee had baseball again, and County Stadium had a new tenant.