Sanchez broke Spring Training with the club and went 2-for-3 on April 8 before being optioned four days later to make room for Chris Sale. The 22-year-old tore up Triple-A with a .344/.368/.466 slash line, two homers, 10 doubles and 17 RBIs in 29 games.
"I was working hard and the results were good for me," Sanchez said through team interpreter Billy Russo. "I tried to work hard, keep the focus and do my job. I don't want to think about what could happen if I [stayed] in the Majors. I just tried to keep playing my game in Triple-A. This is the result of all the hard work that I did."
White Sox manager Robin Ventura said Johnson -- who batted .270/.333/.297 in 27 games with Chicago -- wasn't overmatched offensively, but still has to work with his glove. Johnson committed three errors in the last seven games before his demotion.
"I expect [Johnson] to be back here at some point," Ventura said.
Despite Sanchez's impressive batting splits with Charlotte this year, Ventura stressed the importance of the youngster's defense.
"He can cover a lot of ground," Ventura said. "He's got good hands at second base, switch-hitter, smart player. I think he just brings some stability there right now."
Alex Espinoza is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.