The Los Angeles Angels are "on the prowl" for relievers and starting pitching depth, reports Ken Rosenthal of FOX Sports. Rosenthal also confirms that the Angels had no interest in recently-traded corner infielder Kevin Youkilis.

The Angels already added reliever Ernesto Frieri earlier this season in a trade with the San Diego Padres. The 26-year-old has been perfect for the Angels, not surrendering a run over his 22 innings of work. Frieri has only allowed four hits while striking out 38 batters over that span.

Even with the addition of Frieri, Rosenthal notes Los Angeles is seeking a left-on-left type of reliever that could be an upgrade over Hisanori Takahashi. On the season, Takahashi has maintained an ERA and WHIP of 4.15 and 1.115, but hasn’t been especially dominant against lefties (.712 opponent OPS).

Beyond their bullpen, Rosenthal says the Angels are looking to upgrade their starting pitching depth, but mainly for their Triple-A club. With Jerome Williams currently on the disabled list, the Angels are working with a starting five of Dan Haren, Jered Weaver, C.J. Wilson, Ervin Santana and Garrett Richards.