Caballero will start at shortstop and bat seventh in Wednesday's game against the Mariners.
After filling in at second base for Brandon Lowe in Tuesday's 3-2 win, Caballero will slide over to shortstop Wednesday while Taylor Walls takes a seat in the series finale. The Rays may not commit to Caballero at any one position, but his ability to play second base, shortstop and third base should open up enough avenues for him to take on a near-everyday role in the infield. Caballero has been a below-average hitter this season with a .658 OPS and 89 wRC+ over 399 plate appearances, but he's been far more valuable in fantasy thanks to his 37-for-50 success rate on stolen-base attempts.