Jonathan Cannon pitched seven-hit ball into the ninth inning in his first major league win, helping the Chicago White Sox beat the Houston Astros 2-0 on Tuesday night.

Cannon, a third-round pick in the 2022 amateur draft, struck out four and walked one. He threw 106 pitches, 70 for strikes, in his fifth career start and sixth appearance overall.

The White Sox (20-54) became the last major league team to reach 20 victories this season. They improved to 13-23 at home.

Cannon received a warm ovation when he departed after Jon Singleton and Mauricio Dubón singled with two outs in the ninth. John Brebbia then retired Victor Caratini on a grounder to first for his second save of the season.

Cannon (1-1) made his debut in April, but was optioned to Triple-A Charlotte after allowing 11 runs in 13 2/3 innings over three starts. He has permitted one run and 14 hits in 18 2/3 innings since he was recalled by the White Sox on June 7.

Andrew Vaughn drove in each of Chicago's runs on fielder's choice grounders with the bases loaded, one in the third and another one in the fifth.

Alex Bregman and Trey Cabbage each had two hits for Houston.

The Astros played without slugger Yordan Alvarez, who is batting .365 with five homers and 15 RBIs in June. Manager Joe Espada said Alvarez was dealing with a family matter, but could be back in the lineup as soon as Wednesday.

Framber Valdez (5-5) permitted two hits in six innings, but two of his five walks came around to score. Frustrated by the strike zone, Espada was ejected by plate umpire Derek Thomas in the bottom of the third.

The Sox defense also showed out Tuesday. 

Garrett Crochet (6-5, 3.16 ERA) pitches for Chicago on Wednesday night. The left-hander is 5-1 with a 1.36 ERA in his last nine starts. Hunter Brown (3-5, 5.00) takes the mound for Houston. The right-hander has a 13-inning scoreless streak after winning each of his last two starts. Hear tonight's action on WHOW.