Gary A. Vasquez-USA TODAY Sports

The Los Angeles Angels on Thursday activated outfielder Mickey Moniak and right-hander Chase Silseth for the final three games of the regular season against the visiting Oakland Athletics.

Moniak has not played since Sept. 5 and was on the 10-day injured list since Sept. 15 because of tightness on the left side of his back.

The Angels also activated Silseth from the seven-day IL, and he is scheduled to start Friday night against the Athletics. Silseth got a concussion when he was hit in the head on an errant throw in his last appearance Aug. 26 against the New York Mets.

To make room on the roster, first baseman/outfielder Jared Walsh and rookie left-hander Kolton Ingram were optioned to Triple-A Salt Lake City.

Moniak, 25, is batting .280 with 13 home runs and 43 RBIs over 83 games. He has a .307 on-base percentage and .490 slugging percentage.

Silseth, 23, is 4-1 with a 4.10 ERA, 23 walks and 53 strikeouts in 48 1/3 innings over 15 games (seven starts).

Walsh, 30, is hitting .125 (13-for-104) with four homers and 11 RBIs in 39 games. Ingram, 26, has made five appearances with an 8.44 ERA in 5 1/3 innings, five walks and seven strikeouts.

More must-reads:

TODAY'S BEST
Mets release veteran infielder
Anderson Silva, Chael Sonnen will finish off their trilogy in a boxing ring
Victor Wembanyama, Chet Holmgren highlight 2023-24 All-Rookie team
Jaguars' Doug Pederson discusses Trevor Lawrence contract extension
Saints, star CB 'moving forward' following trade chatter
Pacers ride historic shooting performance to Game 7 blowout of Knicks
Timberwolves mount incredible second-half comeback to stun Nuggets in Game 7
Xander Schauffele proves doubters wrong with historic win at 2024 PGA Championship
Four things we learned from Joey Logano's All-Star Race win at North Wilkesboro
Phil Foden lifts Manchester City to fourth consecutive English Premier League title
Watch: Aaron Judge blasts 13th home run in Yankees' seventh straight win
Canucks won't have linchpin forward for Game 7 vs. Oilers
Jags reportedly mulling extension for Trevor Lawrence, but is that the right choice?
Gordon Hayward calls role with Thunder 'frustrating'
Mets reliever Edwin Diaz showing short shelf life of closers
Three offseason moves the 49ers must make
Watch: NASCAR drivers exchange punches after crash in All-Star Race
Knicks star offers passionate defense of HC Tom Thibodeau after Game 7 loss
Knicks' Jalen Brunson suffers serious injury in Game 7 vs. Pacers
Dodgers add recently acquired left-hander to active roster

Want more Angels news?

Join the hundreds of thousands of fans who start their day with Yardbarker's Morning Bark, the best newsletter in sports.