The other shoe has dropped.

After word began to leak that J.A. Happ was headed back to Philadelphia from Lehigh Valley (which hasn't been confirmed yet), the Phillies made a roster move Monday.

Here's the official press release:

PHILLIES OPTION EATON TO MINOR LEAGUES

Righthander Adam Eaton accepted an optional assignment to the Phillies' minor league system, Senior Vice President & General Manager Pat Gillick announced today. No specific classification has been determined, as the Phillies work out his schedule.

A corresponding roster move to fill Eaton's spot on the 25-man roster will be made prior to Tuesday's game against the Nationals in Washington, D.C.

Eaton, 31, was 4-8 with a 5.80 ERA in 21 games (19 starts) for the Phillies this season. His last two appearances came in relief.