Newly acquired pitcher Rich Hill won’t make his first scheduled start with Dodgers

The Dodgers knew full well what they were getting when they acquired Rich Hill from Oakland on Monday. The veteran left-hander was on the disabled list because of a blister on the middle finger of his pitching hand when the trade-deadline deal was consummated.

But Hill’s condition might be worse than originally thought. Manager Dave Roberts announced Saturday that Hill will not make his scheduled Dodgers debut Sunday because of “remnants of a new-formed blister” on the same finger that arose while Hill played catch Friday.

“It’s on a different part of the finger, but I think with his recent history, we want to be cautious and push his start date back,” Roberts said. “He will be day to day.”

Brandon McCarthy will start Sunday against the Boston Red Sox on regular rest. Julio Urias will likely pitch Monday night against Philadelphia. Roberts said Kenta Maeda and Scott Kazmir will start Tuesday and Wednesday, respectively, against the Phillies.

Hill survived shoulder surgery in 2009 and elbow ligament-replacement surgery in 2011, but said he has never had a problem with blisters. The latest one is on the lower part of his finger and affects him while throwing his curveball, not his fastball.

“I don’t want it to expand and become more of a problem,” Hill said, adding that he is shooting to pitch Friday night against Pittsburgh.

Hill, who was 9-3 with a 2.25 earned-run average in 14 starts for the Athletics, striking out 90 and walking 28 in 76 innings, left a July 17 start after only five pitches because of the blister. It worsened after he threw a 60-pitch bullpen session July 22, and Hill was put on the DL on July 30.

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Without a Trayce

Trayce Thompson was hoping to begin a minor league rehabilitation stint this week, but the outfielder was shut down after he aggravated his lower-back injury by increasing the intensity of his running last week.

Roberts said Thompson will not return until September. Thompson, who said the pain in his lower back “sometimes goes down my legs,” is trying to stabilize his back with core-strengthening exercises.

“I could throw and hit, but running still bothers me,” said Thompson, who was hitting .225 with 13 homers and 32 runs batted in when he went on the DL on July 15. “So I have to take a step back right now and let it heal for a bit.”

Short hops

Reliever Adam Libertatore (elbow inflammation) will begin playing catch in the next few days. Roberts “sees no reason” why the left-hander, who is 2-0 with a 1.62 ERA in 44 games, won’t return Aug. 14, the day he is eligible to come off the DL. … The Dodgers will decide after Brett Anderson’s triple-A start on Monday whether the left-hander, who is scheduled for five innings and 75 pitches, will make one more rehab start or join the rotation. “With where our starting pitching is at, it will be nice to get him back,” Roberts said of Anderson, who is recovering form surgery for a herniated disk in his lower back. … Red Sox second baseman Dustin Pedroia sat out Saturday because of a bruised left shin but expects to start Sunday. … The Red Sox presented retiring Dodgers broadcaster Vin Scully with a framed program from the 1949 Boston University-Maryland football game that he announced in Fenway Park. The assignment led to Scully being hired by the Dodgers to start the 1950 season.

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