The Athletic's Ken Rosenthal was first on the original report.
La Stella is having a solid season, slashing .273/.371/.475 with four home runs and 14 RBI.
"I talked to Billy Eppler (Angels general manager) a lot actually," A's general manager David Forst said Friday via conference call. "I told him a while ago that Tommy would probably be on our radar. He's a really good fit for us right now. One of the best contact rates in the league, a real threat from the left side, a guy with versatility who can play in different spots and just seemed like a real good fit for this lineup."
Forst mentioned La Stella's strikeouts, and his rate is at just six percent this season.
Barreto wasn't getting a ton of playing time this year and did the typical Barreto thing with falling after a successful spring training. He was part of the already-crowded second base platoon with Vimael Machin, Chad Pinder and Tony Kemp.
"Tony has done a great job and I think having too many good options is never a problem," Forst said. "Tony was brought over here partly because of his versatility and ability to play in the outfield, so I think we'll sit down with Bob [Melvin] tomorrow and when Tommy arrives, we'll figure out what exactly the fit is."
La Stella's flight lands about two hours prior to the A's first game of a doubleheader against the Astros on Saturday which is scheduled for a 3:10 pm CT first pitch. La Stella will be eligible for both games with the hope he can be in the lineup as early as the first game.
However, there could be an extra designated hitter scenario where La Stella could fit in beautifully. With Khris Davis' recent struggles, there's an open spot there for La Stella who has dabbled at the position as well. Plus, his power has risen a bit this season.
La Stella earned an AL All-Star selection in 2019 when he slashed .295/.346/.486 with 16 home runs and 44 RBI in 80 games.
La Stella brings an additional lefty bat to the infield, and possibly elsewhere, that the A's were searching for heading into the season.
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A's trade for veteran Tommy La Stella from Angels for Franklin Barreto originally appeared on NBC Sports Bay Area