Ellis, who was placed on the disabled list April 21 with a strained left hamstring, joined Crisp in a rehab assignment with Stockton at Lake Elsinore on Wednesday and went 1-for-3 while playing second base. The A's second baseman is now 1-for-5 through two starts with the Ports.
Crisp, meanwhile, went 1-for-2 with a triple and a walk after enjoying a perfect 4-for-4 day with a home run and three RBIs in a start at center field Tuesday. The 30-year-old outfielder, sidelined all season with a fractured left pinkie finger, has yet to make his A's debut since signing a one-year contract with Oakland in December.
The veteran duo is slated to play with Sacramento on Friday and, depending on the results of that game, both could be back on the A's 25-man roster by the weekend.