Rodon ramps it up in Chicago White Sox's 4-0 win

Even with 6 walks in 6 innings against the Astros, Carlos Rodon showed some encouraging signs in his last start.

"I see a guy that's throwing the ball a lot more free and easier," White Sox manager Rick Renteria said. "His stuff's still good. He did a nice job for us in Houston, attacking the strike zone and using all his pitches well. A couple of misses, but for the most part he was very efficient."

Still getting up to speed after missing most of last season and having shoulder surgery in late September, Rodon was really cruising in Wednesday night's start against the Cardinals.

In the Sox's 4-0 win over St. Louis at Guaranteed Rate Field, Rodon (2-3) scattered 3 hits and 2 walks over 7⅓ innings. The 25-year-old lefty also had 7 strikeouts.

"That was as good of a game as I've seen him throw in a while," Renteria said. "He's got a good arm. He was attacking the zone with everything he had."

Tim Anderson also helped the White Sox snap a six-game losing streak, going 1-for-3 with 2 RBI.

Gonzalez surgery:

Miguel Gonzalez's season is over, and his days with the White Sox are most likely over.

The 34-year-old starting pitcher had right shoulder surgery Wednesday at the Kerlan-Jobe Orthopedic Clinic in Los Angeles. Doctors performed a labral repair and debridement on the shoulder.

According to the Sox, Gonzalez's recovery time is expected to be 9-12 months.

In 3 starts this season, Gonzalez was 0-3 with a 12.41 ERA. He was 7-10 with a 4.31 ERA with the White Sox last year before being traded to Texas.

Rondon released:

After issuing 19 walks in 11⅔ innings since June 1, relief pitcher Bruce Rondon was designated for assignment Wednesday.

The Sox purchased Jeanmar Gomez's contract from Charlotte. He replaces Rodon in the bullpen after going 5-0 with a 2.03 ERA and 2 saves at Triple-A.

Overall, Rodon was 2-3 with an 8.49 ERA in 35 appearances.

"Just not enough strikes," manager Rick Renteria said. "We loved him. Great arm. We were hoping it was going to work out a little bit better."

Gomez, 30, is an eight-year veteran and he's pitched for the Indians, Pirates and Phillies. The right-hander had 37 saves for Philadelphia in 2016.

"For me, 2016 was an amazing year," Gomez said. "It's good to be back in the majors. My sinker ball was working, down in the zone. Last year I lost my sinker early in the season."