He’ll try to avoid a third straight loss after a 9-0 start when he faces the Orioles in the start of a three-game series at Angel Stadium on Monday night.
Weaver (9-2, 2.33 ERA) burst onto the scene May 27 when he gave up three hits over seven scoreless innings in a 10-1 victory over the Orioles.
“I was so amped up, I didn’t even know what my pitch count ended up being,” Weaver said after that contest. “I definitely would have finished it up if they had let me.”
Weaver went on to become the first AL rookie since Whitey Ford in 1950 to win his first nine decisions before dropping his last two outings. He lasted a season-low 4 2-3 innings and gave up season highs of five runs and nine hits in a 6-4 loss at Seattle on Tuesday.
“Some pitches he didn’t get away with, made some mistakes and those guys got some balls to drive,” Angels manager Mike Scioscia said.
The right-hander is 3-1 with a 1.09 ERA in five starts at home, where he’s struck out 26 and walked only five over 33 innings.
Guerrero’s solo homer in the fourth inning tied the score and extended his season-high hitting streak to 20 games. He’s hitting .438 (35-for-80) with 18 RBIs during his run.
The Angels remained 7 1/2 games behind first-place Oakland in the AL West race. Los Angeles also is 7 1/2 games behind the Chicago White Sox for the AL wild card.
Los Angeles’ Garret Anderson was penciled in as the designated hitter Sunday, but was a late scratch with tightness in his left quadriceps. His status for this contest is uncertain.
Anderson is second on the team with 76 RBIs.
Los Angeles is just 3-4 against Baltimore (61-75) this season. Guerrero is batting .462 (12-for-26) with three homers and seven RBIs against the Orioles this season.
Baltimore fell to 2-4 on its nine-game road trip after losing 10-1 at Oakland on Sunday. Orioles starters have struggled on the trip, going 1-3 with an 8.01 ERA.
Hayden Penn’s season debut lasted just two-thirds of an inning Sunday after he allowed eight runs and eight hits and Oakland got out to a 9-0 lead.
“It was a rough debut,” said Penn, who underwent an emergency appendectomy earlier this season, pushing back his first start. “It’s been one of those years so far. Hopefully I’ll get it turned around and get it going.”
The pitching staff has surrendered a major league-high 185 homers.
Rodrigo Lopez (9-14, 6.17) has been the worst offender, giving up a career-high and team-leading 30 homers. Lopez, though, has excelled in his career against the Angels, going 5-1 with a 2.10 ERA in eight starts.
He is 3-7 with a 6.97 ERA on the road and 0-2 with a 7.82 ERA in his last two outings.
The right-hander suffered his AL-leading 14th loss on Tuesday when he surrendered seven runs over 6 2-3 innings in a 9-4 loss at Texas.
“I feel I pitched better than the numbers,” Lopez said.