Heston, who underwent shoulder surgery last summer, hopes to be fully healthy by January and hold a showcase for MLB teams ahead of spring training, Henry Schulman of the San Francisco Chronicle reports.

Heston (undisclosed) made his fifth rehab appearance Tuesday for one of the Giants' rookie-level Arizona League affiliates, tossing a scoreless inning.

Heston agreed to a minor-league contract with the Giants on Wednesday, Alex Pavlovic of NBC Sports Bay Area reports.

Heston heads to the minor-league DL with right shoulder tendinitis, Brandon Warne of Zone Coverage reports.

Heston was designated for assignment Friday.

Heston could be recalled to start one of the game's in Saturday's doubleheader with the Indians, Brandon Warne of ZoneCoverage.com reports.

Heston was optioned to Triple-A Rochester on Monday, Brandon Warne of ZoneCoverage.com reports.

Heston was claimed by the Twins, and will be in Seattle for Minnesota's game Wednesday night, Phil Miller of the Star Tribune reports.

Heston was claimed off waivers by the Dodgers on Friday, Andy McCullough of the Los Angeles Times reports.

Heston was designated for assignment Wednesday, Ryan Divish of The Seattle Times reports.