The Dodgers’ rotation is hurting. Clayton Kershaw (back), Hyun-Jin Ryu (shoulder) and Alex Wood (elbow) are all on the disabled list with potential season-ending injuries. Left-hander Brett Anderson (back) is scheduled to make two rehab starts this week before he’s cleared to return. Right-hander Bud Norris left two batters into Sunday’s game against the Arizona Diamondbacks with an injury to his right lat muscle.Cotton, 24, was 8-5 with a 4.90 ERA in 22 games (16 starts) with Triple-A Oklahoma City this year. In July he was selected to play in the All-Star Futures Game. In five minor league seasons, he’s pitched 94 games (59 starts) with a 3.77 ERA after being selected by the Dodgers in the 20th round of the 2012 draft.Teammates raved about Cotton’s changeup, which he paired with a 95-mph fastball to limit hitters to a .194 batting average in his last 12 starts. However, he’s struggled with command in the past, particularly keeping his fastball down in the zone. Some scouts project him as a middle reliever at the major league level.Holmes, 20, went 8-4 with a 4.02 ERA in 20 games (18 starts) with Single-A Rancho Cucamonga this year. The right-hander had a 16-11 record with a 3.61 ERA in 55 games (52 starts) in three minor league seasons. He was originally selected in the first round (22nd overall) of the 2014 draft out of Conway High in South Carolina.A major league scout who saw Holmes pitch last week said he was throwing fastballs in the 91-95 mph range to overpower hitters, but that Holmes “will need more touch/feel at higher levels.”Montas, 23, has spent most of the season on the disabled list due to rib resection surgery in February. After recovering from the surgery, the right-hander posted a 2.25 ERA in seven games (four starts) with Triple-A Oklahoma City and Double-A Tulsa while touching 100 mph with his fastball.But Montas’ right ribcage pain resurfaced in June and he hasn’t pitched since. He was projected to return by mid-August.Montas appeared in seven games with the Chicago White Sox last season in his only big-league action, allowing eight runs in 15 innings. Newsroom GuidelinesNews TipsContact UsReport an Error The Dodgers traded minor league pitchers Frankie Montas, Jharel Cotton and Grant Holmes to the Oakland A’s for pitcher Rich Hill and outfielder Josh Reddick on Monday.The five-player swap is the Dodgers’ largest — and so far only — move on the day of baseball’s non-waiver trade deadline. Trades must be completed by 1 p.m. Pacific Time. They might not be done.As soon as this week, Hill can give the Dodgers the starting pitcher they urgently need. He’s currently on the 15-day disabled list with a finger blister and eligible to be activated Thursday.Reddick adds some left-handed pop to a lineup that hasn’t needed much recently, but also hasn’t had left-handed hitting outfielder Andre Ethier since Day 1. The 29-year-old is batting .296 with eight home runs and 28 RBIs for the A’s in 68 games this season. Reddick missed more than a month with a fractured thumb in his left hand. Since returning on June 28, he has a .258 batting average in 27 games.Dodgers pitcher Brett Anderson, a former teammate in Oakland, said Reddick has a big personality that would play well in the Los Angeles market. The Savannah, Georgia, native is a free agent at the end of the season.All but 43 of Reddick’s 634 career starts in the outfield have come in right field. That poses an interesting problem for the Dodgers, who already have an everyday right fielder in Yasiel Puig. Puig has been the focus of trade discussions for weeks, and has also played sparingly in left and center field in his career.Out of organized baseball a year ago, Hill signed with the Boston Red Sox in August 2015 and posted a 1.55 earned-run average in four starts. Hill signed a one-year, $6 million deal with the A’s last winter and posted a 9-3 record and a 2.25 ERA in 14 starts.The 36-year-old lefty has also missed time this season with a left groin injury.