Yankees 2B Starlin Castro and 1B Greg Bird continued their rehab with the team at the Rogers Centre in Toronto on Tuesday.
According to Newsday's Erik Boland, both players participated in batting practice and light running hours before gametime.
Castro is expected to begin running the bases when the Yankees return home to face the Red Sox. He was placed on the disabled list for the second time in July due to a hamstring injury. He last played on July 21.
The 27-year-old Castro has a .307/.344/.472 batting line with 12 home runs and 45 RBIs in 79 games this season.
Bird underwent ankle surgery on July 18 after trying to get back onto the field following a foul ball of his ankle. He was initially shut down on May 1.
He said he hopes to begin a rehab assignment after the Yankees' next homestand.
According to ESPN's Buster Olney, the Yankees' medical staff believes Bird can return toward the end of August. The 24-year-old noted he felt good while the Yankees were in Cleveland over the weekend.
"I'm not going to lie, I feel really good," Bird said. "It's just nice to have some closure on that (the ankle) and be able to move on."
Bird missed the entire 2016 season with a shoulder injury. He is hitting .100 with one homer and three RBI in 19 games with the Yankees this season.