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.
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.