Newsroom GuidelinesNews TipsContact UsReport an Error The last two seasons Dayton knew his left elbow was less than 100 percent healthy, though he was never told how much. The Dodgers’ front office was certainly aware. Manager Dave Roberts factored the injury into how often Dayton pitched, and the team sent him to the disabled list twice this year with minor neck stiffness.Maybe Dayton’s elbow factored into his “up-and-down” results: a 4.94 ERA in 29 appearances, with a diminished strikeout-to-walk ratio compared to his breakthrough rookie season of 2016. His fastball regularly touched 95 mph last season, but never this year.Roberts said these results were more indicative of mechanical problems in Dayton’s lower body. For his part, Dayton said he never held back this season because of his elbow.“If it’s in bad shape and it doesn’t present any pain, then who cares? I tried to throw through it this year without pain, and I never felt any pain this year until I threw that last pitch,” Dayton said. “I knew that it was in bad shape but there was no telling how long it had been that way, and it wasn’t giving me any problems so it didn’t matter.”In retrospect, the Dodgers’ deadline-day acquisitions of Tony Watson and Tony Cingrani make more sense. Now, along with Luis Avilan, they’re the top three left-handed relievers in line to make the Dodgers’ postseason roster. LOS ANGELES >> Grant Dayton had one warm-up pitch remaining in the Tulsa Drillers’ bullpen last Friday, a fastball. By the time it reached the catcher, he knew his season was over. Dayton flew back to Los Angeles and met with team physician Dr. Neal ElAttrache, but that merely confirmed the obvious: the ulnar collateral ligament in his left elbow was fully torn.Dayton will have Tommy John surgery on Tuesday in Los Angeles. ElAttrache will perform the surgery, which carries an approximate 12-month timetable for recovery.“I felt like I’ve had an up-and-down year. I was hoping to be able to redeem myself in September, be on a playoff roster, but those dreams obviously came to an end last Friday,” Dayton said. “I can’t dwell on it too much. Definitely it’s disappointing to miss the end of this season when we’ve done so well as a team.”Dayton, 29, was in Tulsa rehabbing a stiff neck when the elbow injury occurred. He’s never had Tommy John surgery before. So how did he know the nature of his injury with such certainty, so soon? Adam Liberatore is beginning to pitch minor league games in Arizona, too, but he remains a ways off from facing major league hitters. Liberatore hasn’t pitched for the Dodgers since May because of a strained left elbow.After the surgery, Dayton said he’ll head to the Dodgers’ Camelback Ranch facility in Arizona to begin his rehab.“Grant was really a big part of what we’re doing,” Roberts said. “He’ll be a big part of where we are going forward.”Stripling startsRoss Stripling will make his first start of the season Saturday in what Roberts described as a “bullpen game.” Stripling will be limited to three or four innings and 45 to 50 pitches. In 35 relief appearances this season, he’s exceeded three innings three times and thrown more than 50 pitches twice.“Probably between me and (Josh) Ravin, and either (Edward) Paredes and Cingrani, we’ll try to cover six, a full start, between the three of us,” Stripling said.Stripling is 3-4 with a 3.41 ERA this season. In 22 games last season, including 14 starts, the right-hander went 5-9 with a 3.96 ERA. He also appeared in five postseason games out of the bullpen last October.As the Dodgers consider candidates for possible long-relief roles in October, Stripling can help himself with a strong outing.“He’s a former starter and he’s pitched in length for us,” Roberts said. “To be able to see that he can go three or four innings for us, I think, was good. … I think if Ross can get that opportunity it’s a good thing for him.”AlsoFor the first time since he was placed on the 10-day disabled list with a right ankle sprain, Cody Bellinger took batting practice outdoors and ran 90 feet. He reported no pain and “very little” swelling afterward. …In his first minor league rehabilitation start, Brandon McCarthy (blister) threw 39 pitches in three shutout innings for Class-A Rancho Cucamonga. He didn’t allow a hit, walked three batters, and struck out two. McCarthy will make his next rehab start Wednesday or Thursday for either Double-A Tulsa or Triple-A Oklahoma City, Roberts said. …The Oklahoma City Dodgers’ game Friday was postponed because of soggy conditions, but the field is expected to be ready for Clayton Kershaw’s Triple-A rehab start Saturday. Kershaw (back) is expected to return to the Dodgers’ rotation Sept. 1-3 during a three-game series in San Diego. …Roberts made pitcher Kenley Jansen available to close Friday after giving him two days off to take a mental and physical break.