Aybar, 32, has handled shortstop for the Braves this season after they traded Andrelton Simmons to the Angels. He hit .242/.293/.313 with 18 extra-base hits and 26 RBI in 368 plate appearances. As regular shortstop Jose Iglesias was recently placed on the disabled list with a strained left hamstring, Aybar will give the Tigers a reliable shortstop to fill the gap.
Aviles, 35, has played second base, third base, shortstop, and all three outfield positions for the Indians this season, though he racked up most of his playing time in right field. He compiled a meager .210/.258/.269 triple-slash line across 181 PA.
Both Aybar and Aviles will become free agents after the season.
Scivicque, 23, was selected by the Tigers in the fourth round of the 2015 draft. This season, with High-A Lakeland, he hit .282/.325/.380 with 19 doubles and 41 RBI in 449 PA.