Phelps (elbow) will throw a simulated game in Atlanta, Ryan Divish of The Seattle Times reports.

EDGE Analysis

It could be the last step in Phelps' rehab back to the bullpen, as a stint in the minors isn't expected to be necessary from the impingement that put him on the disabled list August 8. If all goes well in the simulated game, fantasy owners should expect to see Phelps activated sometime within the next couple days, possibly in time for Seattle's series opener in Atlanta on Monday.