Manager David Ross said that Hendricks has been "dealing with some stuff" but threw a bullpen session Friday, Meghan Montemurro of the Chicago Tribune reports.
Hendricks hasn't started since June 1, and the team hasn't provided an official reason why he was deemed in need of extra rest. However, Ross didn't sound too concerned about Hendricks and said that the right-hander will "pitch in the near future." While the 32-year-old isn't starting Friday or Saturday against the Yankees, he'll likely be in the mix to start during Sunday's series finale or sometime next week against the Padres.