Gil (back) threw a bullpen session Sunday, Greg Joyce of the New York Post reports.

EDGE Analysis

Yankees manager Aaron Boone said Monday that the team is still determining whether Gil's next time on the mound will be a live batting practice session or a rehab start. The right-hander will be eligible for activation from the 15-day injured list on Sept. 6 and Boone added that it's possible Gil is ready by that date. The hurler is recovering from a lower-back strain.