Casali, 25, got the promotion after Tampa Bay's starting catcher Ryan Harrigan was placed on the disabled list. Casali will be the backup catcher to veteran Jose Molina.
Casali, a former star at Vanderbilt, has played at Double A Montgomery and Triple A Durham this year. He hit .314 in 22 games at Montgomery and .237 in 46 games at Durham.
Casali was drafted by Detroit in the 10th round of the 2011 Draft. He was acquired by Tampa Bay last year.
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