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8/25/2014 9:15 P.M. ET

Thatcher tests ankle, hopes to return for A's series

ANAHEIM -- Sidelined Angels left-handed reliever Joe Thatcher threw off a mound for the first time Saturday as a "test" for his injured left ankle.

Thatcher said Monday the ankle was "still bothering me a little bit," but added that he was still on schedule. When Thatcher sprained his ankle vs. the Rays in St. Petersburg on Aug. 2, the prognosis was that he would miss four to six weeks.

Thatcher set a personal goal to be back by this past weekend's series at Oakland (just three weeks since the injury) and is now hoping to return to face the A's this weekend in Anaheim.

Angels manager Mike Scioscia, meanwhile, doesn't expect Thatcher to return until after Monday, when rosters can expand.

"It's one of those things that's really frustrating and you've got to let it heal," Thatcher said.

Thatcher said the ankle hurt when he pushed off the mound, and that he tried to gain more flexibility when he rehabbed in Arizona during the Angels' road trip. He worked four to five hours a day on the ankle, doing some light jogging and keeping with his throwing regimen.

"It's good because my arm will still be in shape, so as soon as this is ready to go, I'll be ready," Thatcher said.

The Angels acquired Thatcher from Arizona in early July. In eight games as an Angel, he has a 6.00 ERA and a .438 batting average against.

Scioscia thinks Rule 7.13 will be clarified by playoffs

ANAHEIM -- Before baseball's most important games in the playoffs, Angels manager Mike Scioscia expects more clarity on one of the most controversial rules this season -- Rule 7.13.

Implemented during this first year of expanded replay, Rule 7.13 states that catchers cannot block the path of a runner to the plate without having the ball. With the addition of the rule and video replay, the play at the plate has seen its share of interpretations.

Scioscia said there was still an "aura of uncertainty" around the play, and that the postseason should force a clearer rule to emerge.

"Once you get some clarity on how it's going to be interpreted by a replay official, you're going to have a little better idea of how you can execute the play, and I think that's what will happen," Scioscia said. "I'm sure when you get into a playoff scenario, there will definitely be, I think, some discussions on exactly the definition of what's going to be called and how things are going to be interpreted out there on the field."

On Aug.5, the Angels lost to the Dodgers when Chris Iannetta couldn't snag a throw due to his positioning that gave a clear path to the runner. On Saturday, they survived an Oakland challenge on an out call of the A's Josh Donaldson at the plate, where Iannetta's foot was moving into the path before he had the ball.

Worth noting

• Grant Green went 1-for-4 with a run scored during a rehab appearance with Triple-A Salt Lake on Sunday. Green is nursing a lumbar strain and hasn't played for the Halos since July 20, when he hit a walk-off single to beat the Mariners.

• The Angel Stadium clubhouse and field areas appeared OK on Monday after a pipe burst during the Angels' 10-game road trip.

Matthew DeFranks is an associate reporter for MLB.com. Follow him on Twitter @MDeFranks. This story was not subject to the approval of Major League Baseball or its clubs.