The San Diego Padres announced Saturday that they selected the contract of right-handed pitcher Burch Smith from Class AA San Antonio, optioned right-handed pitcher Brad Boxberger to Class AAA Tucson and designated right-handed pitcher Fautino De Los Santos for assignment.
Smith, 23, was 1-2 with a 1.15 ERA and 37 strikeouts in six starts for San Antonio.
Boxberger, 24, appeared in just one game for San Diego since being recalled on May 2, pitching 2 1/3 innings on May 4. He is 0-1 with a 4.15 ERA in 10 relief appearances with Tucson.
De Los Santos, 27, appeared in two games with Tucson this season, going 0-1 with a 3.86 ERA.