ANAHEIM -- A little more than a year ago, Angels left-hander Michael Roth won his Major League debut in relief against Houston.
He went into that game with 22 innings of Rookie ball experience in 2012, plus one Double-A start in 2013.
On Sunday, the Angels designated Roth, 24, for assignment to clear 40-man roster room for the latest prodigy, right-handed reliever Mike Morin, who was recalled from Triple-A Salt Lake.
Manager Mike Scioscia said he hopes the club is able to keep Roth -- who struggled in Double-A this season -- in the organization.
"He's a young guy who needs to make adjustments," Scioscia said of Roth, who was 1-1 with a 7.20 ERA in 20 Major League innings last season. "They've been slow in coming.
"We certainly hope he's still with us [after the 10-day DFA window]. He has incredible makeup. He competes great. He's shown flashes [of big league ability], but at times he's not able to make the pitches he needs to make."
Roth was the Angels' ninth-round pick out of South Carolina in 2012 after the Gamecocks reached three straight College World Series championship games, winning the title in '10 and '11. Roth started the first two title-deciding games.
Freese gets vote of confidence from Scioscia
ANAHEIM -- David Freese, who got two hits as the DH on his 31st birthday Monday, was back at third base Tuesday.
Ian Stewart had started seven of the previous 10 at third, with Freese (.173) playing DH most of those.
"He's our third baseman," Scioscia said of Freese. "We need him in there. ... He will get there [offensively]. His at-bats are getting better."
Scioscia said part of Freese's slow start is the adjustment to the AL, and part of it is mechanical.
• Two relievers on the mend, left-hander Sean Burnett (elbow) and right-hander Dane De La Rosa (elbow) have pitched in simulated games, and will work in extended spring training games this week.
"They're obviously closer to a rehab [assignment] than they are to getting back to us," Scioscia said.
Burnett last pitched for the Angels on May 21. De La Rosa, a 75-game workhorse in 2013, was shut down early in Spring Training, went through a rehab assignment but went back on the DL after pitching to three batters April 12 against the Mets.
Earl Bloom is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.