Woeful offensive production dropped the Toronto Blue Jays off their perch atop the American League East, and now Edwin Encarnacion is out.

Facing Jered Weaver isn't likely to make them feel any better.

The scuffling Blue Jays look to avoid a season-high fifth straight loss Monday when they open this three-game series against Weaver and the surging Los Angeles Angels (10:05 p.m. ET).

Blue Jays place Encarnacion on DL

The Toronto Blue Jays placed slugger Edwin Encarnacion on the 15-day disabled list with a right quadriceps strain and activated outfielder NolanReimold before Monday night's road game against the Los AngelesAngels.

Encarnacion, who has a .277 average in 88 games with 26 home runs and 70 runs batted in, suffered the injury while legging out a grounder on Saturday in Oakland. He's expected to miss at least two weeks and won't be able to play in next week's all-star game.

Seattle Mariners third baseman Kyle Seager has been selected to replace Encarnacion on the American League roster.

The 26-year-old Seager, a first-time all-star, entered Monday with a .274 average, 13 homers, 59 RBIs and 21 doubles.

The Blue Jays claimed Reimold off waivers from Baltimore over the weekend.

Reimold had back surgery last July and appeared in 17 games for double-A Bowie of the Eastern League while on a rehab assignment, hitting .315 with two home runs and nine RBIs.

Over parts of five seasons with the Orioles, he has a .252 average with 41 home runs and 126 RBIs.

The Blue Jays also announced Monday that outfielder Kenny Wilson was claimed off waivers by the Athletics.

— The Canadian Press

Toronto (47-43) hit .180 and went 0-for-20 with runners in scoring position while being outscored 14-4 during a four-game series sweep at Oakland, losing the finale 4-2 on Sunday. That was enough for the Blue Jays to go from leading the division by one game on Baltimore to trailing the Orioles by two.

Losing Encarnacion figures to make it far more difficult for Toronto to recover. The first baseman is sidelined for at least two weeks with a right quad strain suffered Saturday."We got shut down big time," manager John Gibbons said. "We're just not very good right now. We're just not producing."

He's second in the majors with 26 homers and 70 runs batted in.

"It hurts us not having him on the team," said outfielder Jose Bautista, who was picked for the AL all-star squad, along with Encarnacion and left-hander Mark Buehrle. "The No. 1 priority is to get him better."

Not in top form

Bautista is still trying to shake off the effects of a recent hamstring injury, and is 5-for-24 in six games since returning. He was the designated hitter for the first five, but played first base on Sunday with Encarnacion out and Adam Lind still struggling with a foot injury.

While the Jays search for a solution to their slump, Weaver (9-6, 3.56 earned-run average) is looking to keep pace with Garrett Richards for the team lead in wins by continuing his success against Toronto.

The right-hander is 9-2 with a 3.48 ERA in 11 career starts against Toronto, winning four in a row at home behind a 1.99 ERA and 34 strikeouts in 31 2/3 innings.

He's held Bautista to 1-for-12 with a double, including 0-for-3 while allowing one run and four hits in 6 1/3 innings of a 9-3 win at Toronto on May 11.

Weaver wasn't nearly that sharp while emerging with a 7-5 win over the Chicago White Sox on Tuesday, giving up five runs and nine hits (two homers) in 5 2/3 innings.

Unlike the Jays, Los Angeles (51-36) is batting .295 with 22 homers and 6.1 runs per game during a 13-3 stretch. The Angels hit a whopping .353 with six homers and 29 runs while sweeping a four-game series from Houston, capping it with a 6-1 win Sunday behind Richards's 11 strikeouts in 7 1-3 innings.

Albert Pujols went 9-for-16 with two homers and seven RBIs in that series after hitting .235 with one home run over the previous 13 games.

The Jays are looking to win a third straight game with J.A. Happ (7-4, 4.38) on the mound. The left-hander didn't get a decision Wednesday, allowing four runs in seven innings of a 7-4 victory over Milwaukee six days after collecting a season-high eight strikeouts in 7 2/3 of a 7-0 win over the White Sox.

He's been tagged for eight runs in 6 2/3 innings while losing both of his starts against the Angels, but will be making his first appearance in Anaheim.