Felix Hernandez rarely gets rattled on the mound. Not by an opponent, from an injury or even his manager's wishes to remove him because of a pitch count.
Now he gets to face the club he's beaten more than any other.
After ending their skid, the Seattle Mariners seek their first back-to-back wins of the young season in the finale of a three-game set with the host Oakland Athletics on Sunday.
Hernandez (1-0, 1.29 ERA) was sharp in his 2015 debut, allowing one run and two hits while striking out 10 through seven innings of Monday's 4-1 win over the Los Angeles Angels. He gave up a homer to the second batter of the game, Mike Trout, then didn't allow another hit until the fifth.
The right-hander battled through a cramp in the sixth and seventh, refusing to come out before manager Lloyd McClendon finally pulled him.
"We'd seen enough," McClendon said. "Ninety-seven pitches is probably a little more than I wanted on the first day of the season, but he did a nice job."
Catcher Mike Zunino could tell Hernandez was dialed in.
''You can just tell in his demeanor, you can tell in how he's going about his business,'' Zunino said. "You see it from pitch-to-pitch or situations that he can turn it up that extra notch.''
Oakland knows all too well. Hernandez went 4-0 with a 2.22 ERA in six starts against the A's last season, and his 19 career victories are his most against any opponent.
Seattle (2-3) hadn't won since Hernandez's opening day gem until Saturday, when shortstop Brad Miller threw a runner out at the plate in the 10th and doubled in the go-ahead run in the 11th in a 5-4 victory.
Nelson Cruz, who went 1 for 15 through the first four games after signing a four-year, $57 million deal in the offseason, hit a three-run homer in the eighth and finished 3 for 5.
Seth Smith had two hits after missing the previous three games with groin tightness.
"This shows the type of fortitude this club has," McClendon said. "That was a gut-wrenching type of game."
Oakland (3-3), which won the series opener 12-0 on Friday, tied it in the eighth with RBI doubles from Ben Zobrist and Brett Lawrie but left the bases loaded in the 10th when Zobrist was thrown out trying to score the winning run.
Mark Canha, who went 7 for 14 with a homer in his first three major league games, finished 1 for 6.
The A's are expected to have Josh Reddick in the lineup for his season debut despite being 6 for 38 (.158) with seven strikeouts lifetime off Hernandez. Reddick hasn't played due to a right oblique strain, and manager Bob Melvin said he'll be monitored.
"He's been a guy that's shown he deserves to be in the lineup for us," Melvin told MLB's official website. "We'll see what the roster dynamic looks like when he gets here (to determine playing time)."
Oakland looks to take this series behind Jesse Hahn, who had a solid effort despite not picking up the victory in his first start.
The right-hander allowed three runs and hit two batters in six innings of a 3-1 loss to Texas on Tuesday. Hahn was making his A's debut after coming over from San Diego in an offseason trade that sent catcher Derek Norris to the Padres.
''It's not the outcome I wanted,'' Hahn said. ''Except for one or two mistake pitches, overall I felt good about it.''
Arguably Hahn's best outing came last season in the third start of his career, when he allowed just an unearned run in seven innings of a 4-1 win over the Mariners on June. 19. Two of the five hits he gave up were to Robinson Cano.