Phillips (arm) is not on the Dodgers' World Series roster, Eric Stephen of SBNation.com reports.
Phillips picked up the save over Baltimore on Thursday, striking out two over a perfect ninth inning.
Phillips blew a save opportunity against Tampa Bay on Saturday, allowing one run one hit while striking out three batters over one inning.
Phillips earned a one-out save in Tuesday's 5-2 win over the Giants after walking a batter.
Manager Dave Roberts stated Monday that the club could deploy Phillips from the seventh inning on, Mike DiGiovanna of the Los Angeles Times reports.
Phillips' hold on the closer role is in jeopardy after Sunday's latest blunder against the Red Sox, Mike DiGiovanna of the Los Angeles Times reports. He allowed three runs on three hits and two walks while only managing to record one out via a strikeout.
Phillips wasn't used in the ninth inning with the Dodgers holding a 4-1 lead over Boston on Friday, and Daniel Hudson instead closed out the contest to earn a save.
Phillips blew a save in Saturday's 11-9 extra-innings loss to the Tigers, allowing two runs on three hits while striking out one in the ninth inning.
Phillips (2-0) was charged with a blown save and earned the win against Milwaukee on Saturday. He allowed one run on one hit while striking out one batter over one inning.
The Dodgers reinstated Phillips (hamstring) from the 15-day injured list Friday, Mike DiGiovanna of the Los Angeles Times reports.