ST. LOUIS -- Former Cardinals pitcher Blaine Boyer was released by Triple-A Memphis on Friday.

The Redbirds needed to free a roster spot for catcher Tony Cruz, who was optioned to Memphis on Friday after the Cards signed reliever Arthur Rhodes.

Boyer, 29, started four games for Memphis and was 0-2 with a 13.50 ERA. He allowed five homers and walked nine over 16 innings. He appeared in 15 games with St. Louis in 2009 and had a 4.41 ERA in 16 1/3 innings.

Here's a look at the rest of the Cardinals' farm system:

• Matt Carpenter doubled to extend his hitting streak to 17 games, but Memphis lost, 8-2, against Tucson on Friday.

• Audry Perez homered to lead Double-A Springfield past San Antonio, 3-1, on Friday as the Cardinals snapped a four-game losing streak.

• Xavier Scruggs belted two home runs to propel Class A Palm Beach past Fort Meyers, 10-2, on Friday. Kyle Conley also homered and Eric Fornataro picked up the win after going eight innings and striking out seven.

• Boone Whiting struck out 10 in seven innings for Class A Quad Cities, but the River Bandits lost, 5-2, against Burlington on Friday.

• Romulo Ortiz homered in a losing effort as short-season Batavia fell, 6-2, to Vermont on Friday.

• Tyler Rahmatulla and David Washington each homered for rookie-level Johnson City on Friday, but the Cards lost, 7-6, to Elizabethton.

• Lance Jefferies tripled and drove in three runs as the Gulf Coast League Cardinals beat the GCL Nationals, 8-5. Corderious Dodd had three hits, including a home run.

Sanchez resumes throwing program

ST. LOUIS -- Eduardo Sanchez has resumed throwing after his strained right shoulder forced the injured Cardinals reliever to be shut down for over three weeks.

Sanchez has been on the disabled list since June 16. He felt discomfort in his shoulder during three appearances with Double-A Springfield in July, which led the Cardinals to suspend his rehabilitation.

The fact that Sanchez is throwing again is an encouraging sign, considering the organization thought the right-hander might not pitch again this season.

"He's throwing without discomfort and now it's just a question of building him up and making sure that he's not rushed," said manager Tony La Russa.

While the Cardinals will not rush the reliever back to action, the club is hoping Sanchez could appear in some Minor League games by the end of the year.

"I think there's a chance," La Russa said.

Prior to his injury, Sanchez had a 1.88 ERA in 25 relief appearances with St. Louis. Opponents were hitting .151 against him.