Mark Canha has plenty of power in reserve for Oakland Athletics

ANAHEIM — Khris Davis remained out of the starting lineup for the second consecutive night because of a left hand contusion, but the A’s had reliable replacement in Mark Canha.

Canha filled Davis’ designated hitter role for the second straight game on Saturday against the Los Angeles Angels while also moving into his No. 4 spot in the batting for the third game of their four-game series at Angel Stadium.

Heading into Saturday’s game, Canha had hit six of his 11 home runs in the 12 games he served as DH this season, including a two-run homer in the 7-2 win against the Angels on Friday night.

“It’s not an easy thing to do, especially for a guy that’s used to being out in the field,” A’s manager Bob Melvin said of Canha’s irregular stints as the DH. “He’s found a way to be productive and doing it in a non-everyday role.”

Davis, who led the majors with 49 home runs last season, was hit by a pitch on the left hand in the seventh inning of the 8-3 loss to the Angels on Thursday. He came to the clubhouse on Saturday afternoon hoping to get back in the lineup, but when he grabbed a bat Melvin could sense his discomfort still lingered.

Davis would have been a nice addition to Saturday’s lineup, as he’s 9 for 21 in his career against Angels starter Tyler Skaggs with two doubles and four home runs.

“It’s literally a day-to-day proposition,” Melvin said of Davis. “If it’s not (Sunday), then we’ve got the off-day (Monday) and, hopefully, it’s the day after that, but we’ll see how he comes in (Sunday).”

Canha has been exceeding expectations ever since the A’s acquired him in a trade with the Colorado Rockies on the final day of the Winter Meetings before the 2015 season. Melvin remembers seeing Canha’s elongated swing for the first time and thinking he wouldn’t last against major league pitching.

Canha ended up leading the A’s in home runs that spring, while also leading the majors in strikeouts. He hit 16 home runs for Oakland in the regular season and led all American League rookies with 70 RBIs in 2015.

“It’s been a process to get to this point,” Melvin said of Canha. “He’s made some adjustments. He’s shortened his swing some, but the power’s still there.”

Treinen hoping for rehab appearance

A’s closer Blake Treinen threw a short bullpen on Saturday and Melvin said they hope to get him in a rehab game on Monday before possibly activating him on Wednesday.

Melvin said he got a close-up view of Treinen’s 31-pitch session and was comforted by his velocity and easy delivery.

“I know he was comfortable and felt good today,” Melvin said.

Treinen went on the injured list last Sunday, retroactive to June 21, with a strained right shoulder.

Treinen, who will turn 31 on Sunday, made his first All-Star team last season when he went 9-2 with 38 saves in 43 opportunities and a 0.78 ERA, becoming the first pitcher in MLB history to post an ERA under 1.00, at least 30 saves and 100 strikeouts in a season.

He’s 2-2 this season with 16 saves in 18 opportunities and a 4.08 ERA.