Saladino was placed on Chicago’s 10-day disabled list with back spasms.
Engel is hitting .221 (33-for-149) with 18 runs scored, 10 doubles, eight home runs and 17 RBIs. Engel’s eight home runs are tied for eighth in the International League.
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Saladino, who played in Charlotte during the 2012, 2014 and 2015 seasons before being called up to the White Sox, was batting .200 with 4 RBIs and no home runs with Chicago this season.
Engel becomes the 10th Charlotte Knights player promoted to the White Sox this season.
Right-handed pitcher Tommy Kahnle (April 6), catcher Kevan Smith (April 13 & May 10), outfielder Willy Garcia (April 14 & May 2), right-handed pitcher Mike Pelfrey (April 22), right-handed pitcher Chris Beck (April 25), left-handed pitcher David Holmberg (May 4), right-handed pitcher Gregory Infante (May 15), right-handed pitcher Tyler Danish (May 26), and right-handed pitcher Juan Minaya (May 26) are the nine others who have been promoted this season.