The Angels will recall Klassen from Triple-A Salt Lake to start Friday's game against the Marlins in Miami, Rhett Bollinger of MLB.com reports.
Klassen will be up with the Angels for the second time this season, after giving up six earned runs in just 4.2 innings across his first two big-league outings back in April. He's been dominant in the minors recently, posting a 1.93 ERA. 1.02 WHIP and 24:3 K:BB in 18.2 frames over his last three starts. He'll now be granted another opportunity with the big club and will match up against a Miami offense that's posted a .654 OPS since the All-Star break.