Dayton re-signed a minor-league deal with the Angels on Wednesday and was assigned to Triple-A Salt Lake.
Dayton signed a minor-league contract with the Angels on Saturday, Mike DiGiovanna of the Los Angeles Times reports.
Dayton intends to opt out of his contract with the Marlins on Sunday, Robert Murray of FanSided.com
Dayton underwent a procedure in September to clean up the AC joint in his left shoulder, Jon Morosi of MLB Network reports.
Dayton was released by Atlanta on Saturday.
Dayton (shoulder) began a rehab assignment at Atlanta's complex league affiliate Tuesday.
Dayton (shoulder) was transferred to the 60-day injured list Wednesday.
Dayton was placed on the 10-day injured list with left shoulder inflammation Saturday.
Dayton (thigh) was reinstated from the 10-day injured list Wednesday.
Dayton was placed on the 10-day injured list Wednesday with left thigh inflammation, retroactive to May 9.