OAKLAND -- The A's will be without starting right fielder Stephen Piscotty on Friday night as they open a three-game series with the Seattle Mariners.
Piscotty underwent surgery to remove a melanoma from his right ear on Thursday. The team expects him to return within a week.
Chad Pinder will start in right field in Piscotty's place and bat fifth in the lineup. Pinder is slashing .261/.303/.425 this season with five home runs and 19 RBI.
Meanwhile, Mark Canha will play left field and bat second. Canha has posted a .239/.370/.550 slash line with 10 homers and 19 RBI. First baseman Matt Olson, the only left-handed hitter in the A's lineup, will bat sixth.
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Right-hander Chris Bassitt will be on the mound for Oakland, seeking his fourth win of the season against two losses. Bassitt, 30, enters with a 3.57 ERA and 1.15 WHIP in nine starts. In five career games against the Mariners, he is 0-2 with a 3.33 ERA.
Seattle will counter with left-hander Marco Gonzales. The 27-year-old is 6-6 with a 4.77 ERA and 1.40 WHIP in 15 starts. He has gone 2-1 with a 3.91 ERA in five career games against the A's.
Here are the full lineups for the A's-Mariners game, which will be broadcast on NBC Sports California and the MyTeams app. Coverage begins at 6:00 p.m. PT, with first pitch at 6:37.
Seattle Mariners (29-43)
Mallex Smith, CF
Kyle Seager, 3B
Domingo Santana, RF
Daniel Vogelbach, 1B
Omar Narváez, C
Tim Beckham, DH
J.P. Crawford, SS
Dee Gordon, 2B
Mac Williamson, LF
Marco Gonzales, LHP (6-6, 4.77 ERA)
Oakland A's (35-34)
Marcus Semien, SS
Mark Canha, LF
Matt Chapman, 3B
Khris Davis, DH
Chad Pinder, RF
Matt Olson, 1B
Ramón Laureano, CF
Jurickson Profar, 2B
Josh Phegley, C
Chris Bassitt, RHP (3-2, 3.57 ERA)