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8/9/2014 7:46 P.M. ET

Maybin readying for return from suspension

PITTSBURGH -- Outfielder Cameron Maybin, currently serving a 25-game suspension for violating Major League Baseball's Joint Drug Prevention and Treatment Program policy, will head to Arizona next week as part of his preparation to return to the active roster.

Maybin, who tested positive for amphetamines, has been working out on his own since his suspension was announced on July 23. He'll work out at the team's Spring Training facility in Peoria.

Maybin will be allowed to play in five Minor League games prior to the day he's eligible to return to the big league roster, which is Aug. 20.

"More than likely that will be in El Paso, but we'll have to look at the schedule," said Padres manager Bud Black of Maybin's likely destination for his Minor League games.

In a statement at the time of his suspension, Maybin said his use of the violated substance stemmed from his attention deficit disorder, for which he previously had a Therapeutic Use Exemption granted.

Maybin is hitting .247, one point lower than his career average, with one home run and nine RBIs in 62 games.

The Padres have been forced to be creative in the outfield without Maybin and Carlos Quentin, who is likely done for the year with a bum left knee. Abraham Almonte, a switch-hitter obtained from Seattle on July 31, got the start in center field on Saturday against the Pirates.

Second rehab start for Cashner already set

PITTSBURGH -- Andrew Cashner's first Minor League rehabilitation start went so well that the team will send him back out on another one on Wednesday, this time with Triple-A El Paso.

Cashner, who has been on the 15-day disabled list since June 21 with right shoulder soreness, tossed two scoreless innings on Friday for Class A Advanced Lake Elsinore. Cashner allowed one hit with three strikeouts. He threw 24 pitches, 19 for strikes.

"His velocity was his normal … low 90s, up to 94 a few times," said Padres manager Bud Black. "He threw great and was very efficient. We got good reports from a number of guys."

Cashner will throw a side session on Sunday in Lake Elsinore and will be back at Petco Park on Monday to work out with the team before heading to El Paso, the team's wildly successful first-year Triple-A affiliate.

Black confirmed that Cashner would make two more Minor League rehab appearances in order to build his endurance, and also his pitch count to between "75 and 80" pitches.

That could potentially put Cashner in a position to rejoin the Padres' starting rotation on or around Aug. 23.

"He's on the move," Black said. "He's feeling good."

Cashner is 2-6 with a 2.36 ERA in 12 starts. He also missed time in May with soreness in his right elbow.

Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.